Environmental Science Quiz PDF

## Environmental Science Quiz ### **Question 1** The ocean is a carbon sink. - True (Correct answer) - False ### **Question 2** Agricultural fields can contaminate water and are typically classified as a point source of pollution. - True - False (Correct answer) ### **Question 3** The Nitrogen cy...

## Environmental Science Quiz ### **Question 1** The ocean is a carbon sink. - True (Correct answer) - False ### **Question 2** Agricultural fields can contaminate water and are typically classified as a point source of pollution. - True - False (Correct answer) ### **Question 3** The Nitrogen cycle is an example of how energy flows in the environment. - True - False (Correct answer) ### **Question 4** Water stress can never occur in places where freshwater sources (such as rivers, lakes) are abundant. - True - False (Correct answer) ### **Question 5** Match the terms to their correct definition | Prompts | Answers | |---|---| | 1) Organism | Correct: An individual living being | | 2) Ecosystem | Correct: All the communities in an area, all the non-living components in the environment and their interactions | | 3) Biome | Correct: Group of ecosystems with the same climate and similar communities | ### **Question 6** Ecosystems change naturally over time. - True (Correct answer) - False ### **Question 7** Grass → Grasshopper → Frog → Python → Eagle What does the arrow represent in the food chain? - Correct: Flow of energy (Correct answer) - Movement of contaminants - Flow of matter - Trophic cascade ### **Question 8** Which of the following option(s) can be categorized as a biotic factor? - Correct: Sunflower (Correct answer) - Water - Correct: Bacteria (Correct answer) - Sunlight ### **Question 9** If we track the amount of chemical in the body of a whale over its lifetime, and find that the amount of chemical increases as the years pass by, then which of the following statements is true? - Correct: The chemical is bioaccumulating (Correct answer) - The chemical is biomagnifying - Both statements are true ### **Question 10** Which of the following option(s) can cause a decrease in oxygen levels in water systems (e.g. in lakes, rivers, etc.)? - Correct: Wastes rich in organic constituents (Correct answer) - Correct: Nitrogen containing wastes (Correct answer) - Correct: Phosphorus containing wastes (Correct answer) - Photosynthesis by phytoplankton ### **Question 11** Water usage can be divided into two main categories: Domestic & Agricultural - True - False (Correct answer) ### **Question 12** How do humans affect the carbon cycle? - Burning fossil fuels - Deforestation - Improper farming activities that affect soil composition - Correct: All of the above (Correct answer) ### **Question 13** Grass → Grasshopper → Frog → Python → Eagle The python occupies which of the following trophic level? - Primary producer - Secondary consumer - Correct: Tertiary consumer (Correct answer) - Apex predator ### **Question 14** Which of the following are the two important processes of the hydrological cycle? - Correct: Evaporation, condensation (Correct answer) - Evaporation, runoff - Condensation, transpiration - Runoff, precipitation - Condensation, runoff ### **Question 15** Grass → Grasshopper → Frog → Python → Eagle Name the primary consumer in the food chain. - Grass - Correct: Grasshopper (Correct answer) - Frog - Python - Eagle ### **Question 1** Which of the following gas is the most abundant in air? - Correct: Nitrogen (Correct answer) - Oxygen - Carbon dioxide - Methane ### **Question 2** Global warming may result in: - Flood - Cyclone - Decline in food productivity - Correct: All of the above (Correct answer) - None of the above ### **Question 3** pH 5 is more acidic than pH 8 - True (Correct answer) - False ### **Question 4** Micro-organisms are useful for drinking water treatment. - Incorrect: True - False (Correct answer) ### **Question 5** In a sedimentation tank, gravity helps in settling out suspended solids. - True (Correct answer) - False ### **Question 6** Select all options which cannot be classified as a particulate pollutant - Sea salt - Smoke - Correct: Ground level Ozone (Correct answer) - Mold spores ### **Question 7** Which of the following is commonly used for removing salts from seawater in a desalination plant? - Coagulation - Flocculation - Correct: Reverse Osmosis (Correct answer) - Sedimentation - Options C & D - None of the above ### **Question 8** Which of the following option(s) primarily contribute to Acid rain? (Select all options that apply) - Correct: NO2 (Correct answer) - Correct: SO2 (Correct answer) - CO2 - O3 ### **Question 9** The term VOCs implies: - Volatile organic components - Correct: Volatile organic compounds (Correct answer) - Very oxidizing components - Volatile organic contaminants ### **Question** **10** Arrange the following treatment steps of a DWTP in the correct order. (Starting from 1, up to 5) Example: If you choose "1" for a treatment step, it implies that it is the first step among all the processes listed. If you choose "5", it implies that it is the last step among all the processes listed. | Prompts | Answers | |---|---| | 1) Addition of coagulants | Correct: 1 | | 2) Flocculation | Correct: 2 | | 3) Filtration | Correct: 4 | | 4) Disinfection | Correct: 5 | | 5) Distribution to end users | Correct: 6 | | 6) Sedimentation | Correct: 3 | ### **Question 11** Which of the following is true for Photochemical smog? - Formed by reaction of VOCs & NOx in presence of sunlight - Causes eye irritation - It is a mixture of different compounds - Options A & B - Correct: Options A, B & C (Correct answer) - None of the above ### **Question 12** The true statement about greenhouse effect is: - Caused only by CO2 - Incorrect: Caused by nitrous oxide, methane, carbon monoxide and chlorofluorocarbons - Results in release of excess heat on earth - Correct: None of the above (Correct answer) ### **Question 13** What is the main purpose of secondary treatment? - Remove coarse and large objects - Correct: Remove organic matter (Correct answer) - Polish the wastewater - Options A, B & C - Options A & B - None of the above ### **Question 1** Arrange the order in which the following effects are placed in the “pyramid of noise effects” suggested by WHO. Please arrange from low severity to high severity, where '1' represents low severity while '5' represents high severity. | Prompts | Answers | |---|---| | 1 | Correct: Feeling of discomfort | | 2 | Correct: Stress indicators | | 3 | Correct: Risk factors | | 4 | Correct: Disease | | 5 | Correct: Mortality | ### **Question 2** It is estimated that only 60% of the food produced worldwide is consumed. What happens to the remaining 40%? - Correct: It ends up being wasted (Correct answer) - It is stored for long term use - It is not meant for general public use - Reasons are not known ### **Question 3** Which is the major component of the global MSW profile? - Correct: Food (Correct answer) - Glass - Metal - Plastic - Wood - Leather ### **Question 4** Composting is a complicated process that can only be carried out at large scale facilities. - True - False (Correct answer) ### **Question 5** Aquaculture is the Industrialized production of milk - True - False (Correct answer) ### **Question 6** Which of the following are challenges associated with recycling plastic waste? - Only few types of plastics are recyclable - Different types of chemicals in plastic makes it difficult to recycle - Recycled plastics are generally of poorer quality - Correct: All options (Correct answer) ### **Question 7** What is a disadvantage with synthetic pesticides? - They are not effective at increasing agricultural output - They become less effective over time - They are slow to work - Correct: Their residues on crops can have severe health effects (Correct answer) ### **Question 8** What is MSW? - Managing solid waste - Correct: Municipal solid waste (Correct answer) - Mining solid waste - Macro solid waste ### **Question 9** What level of noise is harmful to humans? (Select all that apply) - 10 dB - 70 dB - Correct: 85dB (Correct answer) - Correct: 95 dB (Correct answer) - Correct: 110 dB (Correct answer) ### **Question 10** Today we produce more than enough food to meet the basic nutritional needs of every person - True (Correct answer) - False ### **Question 11** What among the following is the major concern with incineration process to obtain energy from waste? - Correct: Generation of air pollutants (Correct answer) - Volume reduction of waste - Requirement of large landfill space - Poor energy recovery ### **Question 12** How does agricultural food production affect soil? - Correct: Decreases amount of topsoil (Correct answer) - Causes flooding - Results in eutrophication - Causes release of greenhouse gases ### **Question 13** Recycling is the only way that we can decrease the amount of waste we make. - True - False (Correct answer) ### **Question 14** Which of the following can be undertaken to manage noise pollution? - Reduce noise at source - Provide hearing protection for workers - Increase greenery in areas where noise is generated - Correct: All of the above (Correct answer) ### **Question 1 ** The change in population over time is best represented by which of the following term? - Correct: Growth rate (Correct answer) - Zero growth - Carrying capacity - Overpopulation ### **Question 2** How does a geothermal power plant generate electricity? - Directly from the earth's heat which - By injecting hot water underground which rotates a turbine - Correct: By injecting water underground which turns into steam and then rises up to rotate a turbine (Correct answer) - By mining hot underground rocks which can be used to turn water into steam above the ground, and rotate a turbine ### **Question 3** "Global hectares per person" is typically the unit of measurement for which of the following? - Correct: Ecological footprint (Correct answer) - Carbon footprint - Nuclear fuel use . Geothermal energy use ### **Question 4** How many SDGs have been established by UN? - 3 - 9 - 10 - 15 - Correct: 17 (Correct answer) ### **Question 5** The largest share of total renewable energy consumption is from: - Wind - Solar - Correct: Biomass (Correct answer) - Hydroelectric - Geothermal ### **Question 6** Natural gas is a non-renewable energy source. - True (Correct answer) - False ### **Question 7** Green buildings generally have lower negative impact on human health - True (Correct answer) - False ### **Question 8** Which of the following occurs due to coal use? - Loss of landscape biodiversity - Release of Acid mine drainage - Air pollution - Correct: All of the above (Correct answer) ### **Question 9** Select the disadvantages of electricity generation using wind energy (You may select more than one option): - Large carbon footprint - Only possible for large-scale application - Correct: Energy production is not consistent (Correct answer) - Correct: Wildlife maybe harmed (Correct answer) - Causes air pollution ### **Question 10** What does the abbreviation LEED stand for? - Correct: Leadership in Energy and Environmental Design (Correct answer) - Leaders in Environmental and Energy Design - Leadership in Environmental Energy design - Leaders of environmental engineering development - None of the above ### **Question 11** What is the source for nuclear power? - Correct: Uranium (Correct answer) - Coal - Natural gas - Radioactivity ### **Question 12** Which of the following is an example of liquid fossil fuel? - Correct: Petroleum (Correct answer) - Coal - Natural Gas - Hydrocarbon ### **Question 13** Animal waste can be used to produce energy. - True (Correct answer) - False ### **Question 14** Which of the following is considered in an LCA (You may select more than one option)? - Correct: Solid waste generation (Correct answer) - Correct: Solid waste disposal (Correct answer) - Correct: Air pollution (Correct answer) - Correct: Global warming potential (Correct answer) ### **Question 15** The population distribution across the planet is uniform. - True - False (Correct answer)