Food Hygiene Quiz - PDF

**?What is food hygiene primarily concerned with.1** a) Food preservation b) Minimizing biological foo...

**?What is food hygiene primarily concerned with.1** a) Food preservation b) Minimizing biological food hazards c) Cooking food d) Food marketing Answer:** b) Minimizing biological food hazards** --- **?What is the primary goal of food hygiene.2** a) To make food taste better b) To minimize food contamination and protect public health c) To reduce the cost of food production d) To make food more attractive Answer:** b) To minimize food contamination and protect public health** --- **?Which of the following bacteria causes salmonellosis.3** a) Listeria monocytogenes b) Clostridium botulinum c) Salmonella enterica d) Staphylococcus aureus Answer:** c) Salmonella enterica** --- **?What is the disease caused by Salmonella typhi.4** a) Botulism b) Typhoid fever c) Listeriosis d) Tuberculosis Answer:** b) Typhoid fever** --- **?Which of the following bacteria causes listeriosis.5** a) Listeria monocytogenes b) Escherichia coli c) Clostridium botulinum d) Salmonella enterica Answer:** a) Listeria monocytogenes** --- **?Which disease is caused by Clostridium botulinum.6** a) Listeriosis b) Salmonellosis c) Botulism d) Cholera Answer:** c) Botulism** --- **?What is the objective of food hygiene regarding food storage.7** a) To store food in unclean conditions b) To prevent food from spoiling due to contamination c) To increase the temperature of food d) To ensure food is not consumed Answer:** b) To prevent food from spoiling due to contamination** --- **?What is one of the objectives of educating people about food hygiene.8** a) To increase food production b) To prevent foodborne illnesses c) To reduce food prices d) To make food more accessible Answer:** b) To prevent foodborne illnesses** --- **?How can foodborne diseases be defined.9** a) Diseases caused by bacterial infections only b) Diseases caused by agents that enter the body through food c) Diseases that only affect animals d) Diseases caused by genetic disorders Answer:** b) Diseases caused by agents that enter the body through food** --- **?What is the first step in preventing foodborne diseases during food handling.10** a) Packaging food b) Storing food in hot temperatures c) Preventing microorganisms from getting into food d) Eating food immediately Answer:** c) Preventing microorganisms from getting into food** --- **?Which of the following is an effective way to slow down the growth of microorganisms in food.11** a) Freezing the food b) Adding salt c) Irradiating food d) Cooking the food Answer:** a) Freezing the food** --- **?What does food packaging help with in preventing contamination.12** a) To make food taste better b) To minimize transmission of microorganisms from humans c) To increase the shelf life of food d) To make food look appealing Answer:** b) To minimize transmission of microorganisms from humans** --- **?What should be done with cooked and raw foods to prevent contamination.13** a) Store them together b) Store them separately c) Mix them for better flavor d) Refrigerate them in the same container Answer:** b) Store them separately** --- **?Which of the following is a key personal hygiene practice for food handlers.14** a) Wearing clean, protective clothing b) Wearing makeup c) Eating while handling food d) Working without washing hands Answer:** a) Wearing clean, protective clothing** --- **?Why is it important to cover your hair when handling food.15** a) To look more professional b) To prevent hair contamination of food c) To prevent skin infection d) To maintain hygiene in the kitchen Answer:** b) To prevent hair contamination of food** --- **?What is a key practice to prevent contamination when handling food.16** a) Coughing while preparing food b) Washing hands thoroughly before and after handling food c) Wearing unwashed clothes d) Sneezing into the food Answer:** b) Washing hands thoroughly before and after handling food** --- **?Which of the following methods is used to preserve food by preventing bacterial growth through high salt concentrations.17** **?Which of the following methods is used to preserve food by preventing bacterial growth through high salt concentrations a) Freezing b) Pickling c) Salting d) Canning Answer:** c) Salting** --- **?What is the purpose of pickling food in vinegar.18** a) To make food taste better b) To prevent bacteria from multiplying c) To reduce food storage time d) To make food harder to digest Answer:** b) To prevent bacteria from multiplying** --- **?What is the main benefit of freezing food for preservation.19** a) It enhances the flavor b) It stops bacteria from multiplying c) It makes food more appealing d) It increases the cost of food Answer:** b) It stops bacteria from multiplying** --- **?What is the main purpose of canning food.20** a) To make food more attractive b) To seal food in airtight containers and kill bacteria with heat c) To store food in a cool environment d) To add preservatives to food Answer:** b) To seal food in airtight containers and kill bacteria with heat** --- **?What is the challenge associated with sanitation in eating establishments.21** a) Ensuring food is sold at low prices b) Maintaining cleanliness and hygiene c) Preparing large quantities of food d) Increasing food variety Answer:** b) Maintaining cleanliness and hygiene** --- **?Which of the following is a sanitation method in eating places.22** a) Regular cleaning protocols b) Using disposable food packaging only c) Serving raw food to customers d) Avoiding food storage Answer:** a) Regular cleaning protocols** --- **?What is the role of proper dishwashing in food sanitation.23** a) To make dishes look new b) To ensure dishes are free from contaminants c) To use as a marketing tool d) To reduce food consumption Answer:** b) To ensure dishes are free from contaminants** --- **?Why is staff hygiene critical in food handling.24** a) To prevent cross-contamination and foodborne illnesses b) To make food look more appetizing c) To keep food fresh d) To reduce the cost of food preparation Answer:** a) To prevent cross-contamination and foodborne illnesses** --- **?How does proper ventilation contribute to food hygiene.25** a) It makes the food smell better b) It prevents the growth of microorganisms by circulating air c) It makes the kitchen look cleaner d) It increases the shelf life of food Answer:** b) It prevents the growth of microorganisms by circulating air** --- **?What should food handlers do if they have wounds or infections.26** a) Continue handling food but wear gloves b) Avoid handling food or utensils until healed c) Wash their hands frequently d) Cover wounds with plastic Answer:** b) Avoid handling food or utensils until healed** --- **?What is one of the key hygiene practices for food handlers regarding their hands.27** a) Keeping hands in pockets b) Cleaning hands at all times c) Wearing rings while handling food d) Not washing hands frequently Answer:** b) Cleaning hands at all times** --- **?What should food handlers do with their hair while handling food.28** a) Leave hair loose for better airflow b) Cover their hair with a head covering c) Cut their hair short d) Avoid touching their hair Answer:** b) Cover their hair with a head covering** --- **?Which of the following is the main goal of food preservation.29** a) To make food more flavorful b) To increase food safety and prevent spoilage c) To make food look attractive d) To reduce food costs Answer:** b) To increase food safety and prevent spoilage** --- **?What is one of the potential risks of improper food handling.30** a) Increased food shelf life b) Decreased food safety c) Better taste d) More nutrient retention Answer:** b) Decreased food safety** --- **?Which of the following is a method of food preservation using low temperatures.31** a) Freezing b) Salting c) Canning d) Pickling Answer:** a) Freezing** --- **?What type of bacteria is most likely to cause food poisoning from improperly stored food.32** a) Escherichia coli b) Listeria monocytogenes c) Salmonella d) All of the above Answer:** d) All of the above** --- **?What is a proper food handling practice to prevent contamination.33**  **?is a proper food handling practice to prevent contamination a) Letting food sit at room temperature for long periods b) Cooking food to the appropriate temperature c) Mixing raw and cooked foods together d) Using dirty utensils Answer:** b) Cooking food to the appropriate temperature** --- **?What should food handlers avoid while handling food.34** a) Sneezing and coughing near food b) Wearing gloves c) Wearing aprons d) Using clean utensils Answer:** a) Sneezing and coughing near food** --- **?Which of the following is NOT a food preservation method.35** a) Freezing b) Canning c) Boiling d) Salting Answer:** c) Boiling** --- **?What is the purpose of food packaging.36** a) To make food look more colorful b) To protect food from contamination c) To reduce food consumption d) To enhance food flavor Answer:** b) To protect food from contamination** --- **?What does personal hygiene help prevent in the context of food handling.37** a) Bad food taste b) Cross-contamination c) Longer shelf life d) Better food presentation Answer:** b) Cross-contamination** --- **?What should food handlers do after using the restroom.38** a) Ignore handwashing b) Wash hands thoroughly before handling food c) Wipe hands on a towel d) Handle food immediately Answer:** b) Wash hands thoroughly before handling food** --- **?What is the effect of improper food hygiene.39** a) Decreased food waste b) Increased risk of foodborne illnesses c) Improved food quality d) Longer shelf life Answer:** b) Increased risk of foodborne illnesses** --- **?Why should food handlers be educated and trained on food hygiene practices.40** a) To increase the cost of food b) To reduce the chances of foodborne illness outbreaks c) To reduce food shelf life d) To make food look better Answer:** b) To reduce the chances of foodborne illness outbreaks**  **?Which of the following is NOT considered a requirement for a house’s location.41** a) Close proximity to transport systems b) Located on dry, non-caving ground c) Near entertainment facilities d) Close to industrial areas Answer:** d) Close to industrial areas** --- **?What is the primary reason for constructing a house with strong materials.42** a) To create aesthetic value b) To withstand the vagaries of nature like floods or earthquakes c) To save money on construction d) To reduce energy consumption Answer:** b) To withstand the vagaries of nature like floods or earthquakes** --- **?Which of the following is a health-related issue arising from poor housing sanitation.43** a) Overcrowding b) Sufficient water supply c) Contaminated water and insect-borne diseases d) Proper light and ventilation Answer:** c) Contaminated water and insect-borne diseases** --- **?Which feature is essential for a house to be comfortable for the residents.44** a) Multiple shared rooms for family members b) Separate kitchen, store room, and bedrooms c) No windows or ventilation d) Single room for the entire family Answer:** b) Separate kitchen, store room, and bedrooms** --- **?Which of the following indicators is associated with the cost of a building.45** a) Physical indicators b) Social indicators c) Economic indicators d) Comfort indicators Answer:** c) Economic indicators** --- **?What is a common consequence of overcrowding related to ventilation.46** a) Enhanced circulation of fresh air b) Decreased air humidity c) Stagnation of air, leading to increased temperature and humidity d) Improved air quality Answer:** c) Stagnation of air, leading to increased temperature and humidity** --- **?What is the ideal floor area per person to prevent overcrowding.47** a) 100 sq feet or more for each person b) 70 to 90 sq feet for each person c) 110 sq feet for 2 persons d) 50 sq feet per person Answer:** b) 70 to 90 sq feet for each person** --- **?Overcrowding can lead to which of the following diseases.48** a) Chronic diseases like diabetes b) Respiratory diseases like tuberculosis and influenza c) Non-contagious diseases like cancer d) Mental wellness Answer:** b) Respiratory diseases like tuberculosis and influenza** --- **:The accepted room-to-person ratio for 4 rooms in a house is.49** a) 3 persons b) 5 persons c) 7 persons d) 10 persons Answer:** c) 7 persons** --- **?Which of the following is an example of a social indicator of housing.50** a) Floor area per person b) Frequency of suicides or drug abuse c) Number of bedrooms in a house d) Type of construction materials used Answer:** b) Frequency of suicides or drug abuse** --- **?What does "thermal comfort" in housing refer to.51** a) Proper insulation and air circulation for a comfortable temperature b) High quality of furniture c) Spacious living rooms d) Availability of entertainment facilities Answer:** a) Proper insulation and air circulation for a comfortable temperature** --- **?Which of the following is an effect of poor sanitation in a home.52** a) Increased comfort for the residents b) Reduced risk of diseases c) Spread of waterborne diseases like cholera d) Reduced energy costs Answer:** c) Spread of waterborne diseases like cholera** --- **?What does the term "visual comfort" in housing refer to.53** a) The size of the windows b) The aesthetic appeal and lighting in the house c) Proper noise control in the living space d) The amount of furniture Answer:** b) The aesthetic appeal and lighting in the house** --- **?What is the primary consequence of poor housing in terms of mental health.54** a) Increased risk of physical diseases b) Decreased social interaction and higher rates of psychosis c) Better cognitive development d) Reduced family stress Answer:** b) Decreased social interaction and higher rates of psychosis** --- **?"In a housing context, what is "acoustic comfort.55** a) Proper temperature regulation b) Proper lighting and ventilation c) Control of noise levels in the house d) Access to outdoor spaces Answer:** c) Control of noise levels in the house** --- **?What is the recommended room-to-person ratio for 1 room.56** a) 2 persons b) 3 persons c) 5 persons d) 7 persons Answer:** a) 2 persons** ---  **?What is housing defined as a) A place for storing belongings b) A physical structure providing shelter, security, and health facilities c) A place for outdoor activities d) A temporary shelter Answer:** b) A physical structure providing shelter, security, and health facilities** --- **?Which of the following is a requirement for a house.2** a) Proximity to a zoo b) Location on dry, non-caving ground c) Overcrowding in the living area d) Lack of sanitation Answer:** b) Location on dry, non-caving ground** --- **?What is essential in terms of sanitation for a house.3** a) Poor lighting and ventilation b) Sufficient water supply and proper drainage c) No separate kitchen d) Overcrowding in the living space Answer:** b) Sufficient water supply and proper drainage** --- **?What is an important feature of comfortable house-life.4** a) A small common living room for the family b) A separate kitchen and store room c) No need for a living room d) No bedroom separation Answer:** b) A separate kitchen and store room** --- **:Housing standards vary based on.5** a) Only the climate b) Only socioeconomic status c) Socioeconomic status, family size, cultural practices, and climate conditions d) Family size alone Answer:** c) Socioeconomic status, family size, cultural practices, and climate conditions** --- **?Which of the following is part of recommended housing standards.6** a) No need for a foundation b) Proper site selection c) Only one room for a family of six d) No doors and windows Answer:** b) Proper site selection** --- **?How does poor housing affect health.7** a) It has no effect on health b) It affects residents physically, mentally, and socially c) It only affects physical health d) It only affects mental health Answer:** b) It affects residents physically, mentally, and socially** --- **?Which of the following can lead to overcrowding in housing.8** a) High ceiling height b) High floor area per person c) High room-per-person ratio d) Low floor area per person Answer:** d) Low floor area per person** --- **:The accepted standard for floor area per person in a house is.9** a) 100 sq feet or more for 1 person b) 70 to 90 sq feet for 2 persons c) 110 sq feet or more for 2 persons d) 150 sq feet for 1 person Answer:** c) 110 sq feet or more for 2 persons** --- **?What is the acceptable room-to-person ratio for 3 rooms.10** a) 2 persons b) 3 persons c) 5 persons d) 7 persons Answer:** c) 5 persons** --- **?Which of the following is considered overcrowding in terms of sex separation.11** a) Two persons of the opposite sex over 10 years of age sleeping in the same room b) Children of the same sex sleeping in separate rooms c) Only husband and wife sleeping in the same room d) No separation needed between sexes Answer:** a) Two persons of the opposite sex over 10 years of age sleeping in the same room** --- **:Overcrowding can lead to the spread of.12** a) Tuberculosis and influenza b) Fresh air and sunlight c) No diseases d) Mental wellness Answer:** a) Tuberculosis and influenza** --- **?What is a common social effect of overcrowding in housing.13** a) Increased privacy b) Better communication among family members c) Bad social effects, especially when opposite-sex individuals share a sleeping room d) Positive mental health Answer:** c) Bad social effects, especially when opposite-sex individuals share a sleeping room** --- **?Which of the following can result from isolation or loneliness in housing.14** a) Reduced risk of mental illness b) Psychosis and behavioral disorders c) Improved social relationships d) None of the above Answer:** b) Psychosis and behavioral disorders** --- **?Which of the following is an indicator of housing related to physical conditions.15** a) Frequency of suicides b) Type of construction, floor area, sanitation c) Drug abuse levels d) Mental health issues Answer:** b) Type of construction, floor area, sanitation** --- **:Economic indicators of housing include.16** a) Floor area and ventilation b) Rental level and taxes c) Frequency of diseases d) Type of roof Answer:** b) Rental level and taxes** --- **:Indicators related to preventable diseases include.17** a) Floor area per person b) Frequency of diseases due to overcrowding and contaminated water  **?Which of the following is a comfort indicator of housing a) Floor area per person b) Thermal comfort c) Rental level d) Taxes Answer:** b) Thermal comfort** --- **:Indicators related to mental health and social well-being include.19** a) Frequency of suicides and drug abuse b) Floor area and sanitation c) Room-to-person ratio d) Type of roof Answer:** a) Frequency of suicides and drug abuse** --- **?What is a major consequence of overcrowding.20** a) Better air circulation b) Spread of contagious diseases like scabies c) Improvement in social bonds d) Increased happiness Answer:** b) Spread of contagious diseases like scabies** --- **:Poor ventilation and overcrowding in housing lead to.21** a) Healthier living conditions b) Increased susceptibility to diseases c) Decreased air humidity d) Improved immune systems Answer:** b) Increased susceptibility to diseases** --- **?Which of the following is an example of a physical housing indicator.22** a) Frequency of mental disorders b) Insect-borne diseases c) Floor area per person d) Cost of construction Answer:** c) Floor area per person** --- **?Which of the following can cause respiratory diseases to spread faster.23** a) Good ventilation b) Overcrowding and poor ventilation c) Proper sanitation d) Adequate water supply Answer:** b) Overcrowding and poor ventilation** --- **?What is a necessary feature for preventing insect and rodent infestations in housing.24** a) Lack of lighting b) Proper insect-proofing and rodent-proofing c) Overcrowded rooms d) No sanitation Answer:** b) Proper insect-proofing and rodent-proofing** --- **:Housing that provides comfort should include.25** a) Poor insulation and poor lighting b) Thermal, visual, and acoustic comfort c) Overcrowding of rooms d) Lack of ventilation Answer:** b) Thermal, visual, and acoustic comfort** --- **?What is the primary aim of sanitation in housing.26** a) To ensure a pleasant aesthetic b) To prevent overcrowding c) To provide sufficient light, ventilation, and water supply d) To minimize family interactions Answer:** c) To provide sufficient light, ventilation, and water supply** --- **?What is a typical feature of housing for optimal health.27** a) Overcrowded living conditions b) Inadequate lighting and ventilation c) Proper water supply and drainage arrangements d) No space for a common living room Answer:** c) Proper water supply and drainage arrangements** --- **?What is a consequence of poor housing standards on social well-being.28** a) Increased risk of mental health issues b) Increased outdoor activities c) Better educational outcomes d) Improved community interaction Answer:** a) Increased risk of mental health issues** --- **?In terms of housing, what does “thermal comfort” refer to.29** a) Proper room temperature and air circulation b) Proximity to shopping areas c) Size of the house d) Sanitation facilities Answer:** a) Proper room temperature and air circulation** ---  **?Which of the following is considered a social indicator of housing.30 a) Insect-borne diseases b) Room-to-person ratio c) Frequency of suicides d) Floor area per person Answer:** c) Frequency of suicides** --- **?What is the impact of overcrowding on mental health.31** a) Decreased risk of psychosis b) Increased likelihood of psychosis and behavioral disorders c) Enhanced social interaction d) Improved personal growth Answer:** b) Increased likelihood of psychosis and behavioral disorders** --- **?What is the accepted room-to-person ratio for 2 rooms in a house.32** a) 1 person b) 2 persons c) 3 persons d) 5 persons Answer:** c) 3 persons** --- **?Which of the following can be a sign of inadequate housing.33** a) Increased incidence of respiratory diseases b) Increased number of rooms c) Decreased number of persons per room d) Proper ventilation and light Answer:** a) Increased incidence of respiratory diseases** --- **?What is the primary cause of diseases in overcrowded houses.34** a) Clean water supply b) Lack of sunlight c) Poor sanitation and ventilation d) Proper waste disposal Answer:** c) Poor sanitation and ventilation** --- **?What is one of the main objectives of good housing standards.35** a) To reduce the cost of living b) To promote family disintegration c) To ensure the safety, health, and comfort of residents d) To increase the size of the house Answer:** c) To ensure the safety, health, and comfort of residents** --- **?What is a recommended standard for overcrowding in terms of floor area.36** a) 60 sq feet per person b) 70 to 90 sq feet per person c) 100 sq feet per person d) 150 sq feet per person Answer:** b) 70 to 90 sq feet per person** --- **?In housing, what does "acoustic comfort" refer to.37** a) Proper air quality b) Sufficient lighting c) Noise control and sound quality d) Access to recreational facilities Answer:** c) Noise control and sound quality** --- **?What effect does overcrowding have on children.38** a) Increased risk of developing respiratory diseases b) Better social development c) Improved academic performance d) Decreased risk of infections Answer:** a) Increased risk of developing respiratory diseases** --- **?What can help prevent overcrowding in housing.39** a) Increasing family size b) Reducing the number of rooms c) Ensuring adequate floor area per person d) Reducing access to sanitation Answer:** c) Ensuring adequate floor area per person** --- **?Which of the following is a positive indicator of housing.40** a) Increased frequency of drug abuse b) Proper sanitation and ventilation c) Overcrowding in sleeping rooms d) Poor water supply Answer:** b) Proper sanitation and ventilation** **?What is a major cause of increasing air pollution over the past few decades.1** a) Natural disasters b) Man's activities such as industrialization and urbanization c) Global warming d) Ozone depletion Answer:** b) Man's activities such as industrialization and urbanization** --- **?Which of the following is NOT a chemical pollutant.2** a) Dust b) Carbon dioxide c) Nitrogen dioxide d) Lead Answer:** a) Dust** --- **?What is an example of a biological pollutant.3** a) Sulfur dioxide b) Nitrogen oxide c) Pathogens (microbes) d) Carbon monoxide Answer:** c) Pathogens (microbes)** --- **?Which of the following is a major source of air pollution.4** a) Vegetation b) Nuclear explosions c) Natural gas d) Solar power Answer:** b) Nuclear explosions** --- **?What is one of the immediate effects of air pollution on health.5** a) Skin cancer b) Chronic bronchitis c) Acute bronchitis d) Lung cancer Answer:** c) Acute bronchitis** --- **?What causes acid rain.6** a) Carbon monoxide dissolving in water vapor b) Sulfur dioxide and nitrogen dioxide dissolving in water vapor c) Methane dissolving in water vapor d) Ozone reacting with carbon dioxide Answer:** b) Sulfur dioxide and nitrogen dioxide dissolving in water vapor** --- **?Which of the following is a consequence of global warming.7** a) Cooling of the Earth's atmosphere b) Melting of polar ice caps c) Reduced greenhouse gas effect d) Increase in crop production Answer:** b) Melting of polar ice caps** --- **?What is the main role of the ozone layer.8** a) Filter harmful ultraviolet rays from the sun b) Increase greenhouse gases in the atmosphere c) Increase rainfall d) Cause acid rain Answer:** a) Filter harmful ultraviolet rays from the sun** --- **?What is the air pollution index used to measure.9** a) Carbon dioxide levels b) The amount of smoke and aerosols in the air c) The level of sulfur dioxide only d) The temperature of the atmosphere Answer:** b) The amount of smoke and aerosols in the air** --- **?Which of the following is a general measure to control air pollution.10** a) Increasing the number of industries in urban areas b) Establishing green belts between industries and residential areas c) Burning more fossil fuels d) Reducing vehicle maintenance Answer:** b) Establishing green belts between industries and residential areas** ---  **?Which of the following pollutants is a metal.11** a) Sulfur dioxide b) Carbon monoxide c) Lead d) Nitrogen dioxide Answer:** c) Lead** --- **?Which of these is a health effect caused by long-term exposure to air pollution.12** a) Acute asthma attacks b) Bronchial asthma c) Skin irritation d) Conjunctivitis Answer:** b) Bronchial asthma** --- **?What is one of the global effects of air pollution.13** a) Increased plant growth b) Decreased ocean acidification c) Spread of tropical diseases d) Improvement in food production Answer:** c) Spread of tropical diseases** --- **?Which of the following is a source of air pollution.14** a) Rainwater collection b) Ocean spray c) Solar panels d) Wind turbines Answer:** b) Ocean spray** --- **?What is the primary reason for the formation of smog.15** a) Excessive rainfall b) High temperatures and air pollution c) Depletion of the ozone layer d) Overuse of electricity Answer:** b) High temperatures and air pollution** --- **?What is one way to prevent and control air pollution through engineering technology.16** a) Planting more trees in residential areas b) Replacing pollution-causing industrial processes with cleaner methods c) Increasing the use of fossil fuels in industries d) Encouraging increased traffic in urban areas Answer:** b) Replacing pollution-causing industrial processes with cleaner methods** --- **?What is a possible effect of the depletion of the ozone layer.17** a) Increase in the number of fish b) Decreased incidence of cataracts c) Impairment of the human immune system d) Improvement in crop yields Answer:** c) Impairment of the human immune system** --- **?What is an example of a measure that can be taken to control traffic-related air pollution.18** a) Increased use of nuclear energy b) Construction of bypass roads c) Restricting the use of renewable energy sources d) Encouraging tobacco smoking Answer:** b) Construction of bypass roads** --- **?Which of the following pollutants is linked to the greenhouse effect.19** a) Carbon dioxide b) Sulfur dioxide c) Lead d) Arsenic Answer:** a) Carbon dioxide** --- **?How can vehicle-related air pollution be minimized.20** a) By using unleaded petrol and fitting catalytic converters b) By reducing the number of vehicles on the road c) By increasing the use of coal for energy d) By burning more fuel in vehicles Answer:** a) By using unleaded petrol and fitting catalytic converters**  **?Which of the following gases is NOT a contributor to air pollution a) Carbon dioxide b) Nitrogen dioxide c) Oxygen d) Sulfur dioxide Answer:** c) Oxygen** --- **?What is a significant effect of global warming on the climate.32** a) Cooling of the atmosphere b) Increased dryness of the climate c) Decrease in sea level d) Decrease in skin cancer rates Answer:** b) Increased dryness of the climate** --- **?What environmental problem is caused by the thinning of the ozone layer.33** a) Acid rain b) Skin cancer and cataracts c) Increased plant growth d) Erosion of soil Answer:** b) Skin cancer and cataracts** --- **?What is the impact of air pollution on building materials.34** a) Buildings become stronger b) Buildings are protected from erosion c) Air pollution damages buildings, leading to expensive repairs d) Air pollution helps to maintain buildings Answer:** c) Air pollution damages buildings, leading to expensive repairs** --- **?Which of the following pollutants is considered a carcinogen.35** a) Nitrogen dioxide b) Carbon monoxide c) Arsenic d) Methane Answer:** c) Arsenic** --- **?Which of the following strategies is part of engineering technology to control air pollution.36** a) Building more roads in urban areas b) Constructing green-belts between industries and residential areas c) Replacing pollution-causing industrial processes with cleaner methods d) Using more fossil fuels for industrial processes Answer:** c) Replacing pollution-causing industrial processes with cleaner methods** --- **?What is the purpose of a sulfur-dioxide index.37** a) To measure the level of particulate matter in the air b) To estimate the level of sulfur dioxide in the air c) To monitor the ozone layer depletion d) To monitor global temperature changes Answer:** b) To estimate the level of sulfur dioxide in the air** --- **?Which of the following is a source of biological air pollution.38** a) Carbon dioxide b) Dust c) Pathogens (microbes) d) Ozone Answer:** c) Pathogens (microbes)** --- **?What can help mitigate the harmful effects of vehicular air pollution.39** a) Increasing the number of vehicles in urban areas b) Using unleaded petrol and periodic vehicle maintenance c) Encouraging car use in densely populated cities d) Limiting the use of public transportation Answer:** b) Using unleaded petrol and periodic vehicle maintenance** --- **?How can acid rain negatively impact agriculture.40** a) It improves crop yields by fertilizing the soil b) It increases the acidity of the soil, harming crops c) It has no effect on agricultural production d) It promotes the growth of pests, benefiting crops Answer:** b) It increases the acidity of the soil, harming crops**