Environmental Pollution

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Questions and Answers

What is the primary reason for air pollution?

Industrial waste disposal

Deforestation

Urbanization

Burning of fossil fuels (correct)

What is released into the air due to coal burning?

Methane

Nitrogen oxide

Carbon monoxide

Sulphur dioxide (correct)

What is a long-term effect of air pollution on humans?

Chronic respiratory disease (correct)

Liver disease

Skin cancer

Heart disease

What is a consequence of air pollution on the environment?

Rise in global temperatures Signup and view all the answers

What is the effect of air pollution on the human respiratory system?

Increases the risk of asthma Signup and view all the answers

What is a major source of air pollution?

All of the above Signup and view all the answers

What is a consequence of releasing hazardous gases into the air?

Acid rain and global warming Signup and view all the answers

What is the result of excessive fuel burning?

Release of chemical substances into the air Signup and view all the answers

What is one of the major causes of water pollution?

Industrial waste dumped into rivers and other water bodies Signup and view all the answers

What is the result of eutrophication in water bodies?

Blockage of sunlight and reduction in oxygen levels Signup and view all the answers

What is a consequence of water pollution on humans?

Severe effects on the entire food chain Signup and view all the answers

What is one of the causes of soil pollution?

Incorporation of unwanted chemicals in the soil Signup and view all the answers

What is a consequence of soil pollution?

Soil erosion Signup and view all the answers

What is the primary function of an insecticide?

To kill insects Signup and view all the answers

What is noise pollution caused by?

Loud music and machines in industries Signup and view all the answers

What is the classification of rotenone according to its kingdom?

Plantae Signup and view all the answers

What is a consequence of noise pollution?

Psychological problems like stress, hypertension, etc. Signup and view all the answers

What is the effect of rotenone on cellular respiration in fish?

It interferes with cellular respiration Signup and view all the answers

What is the purpose of pesticides?

To eliminate or control pests Signup and view all the answers

What is the use of rotenone in powdered form?

To treat scabies and head lice on humans Signup and view all the answers

What is the effect of rotenone on arthropods?

It kills most arthropods Signup and view all the answers

What is the classification of rotenone according to its family?

Fabaceae Signup and view all the answers

What is the use of rotenone in aquatic research?

To study the biodiversity of marine fishes Signup and view all the answers

What is a major class of insecticides?

Organophosphate and Carbamate Signup and view all the answers

Study Notes

Pollution

Pollution is the introduction of contaminants into the natural environment that cause adverse change.
Pollutants can be either foreign substances/energies or naturally occurring contaminants.
Pollution can muddy landscapes, poison soils and waterways, or kill plants and animals.
Humans are also regularly harmed by pollution, leading to chronic respiratory disease, lung cancer, and other diseases.

Types & Causes of Pollution

Air Pollution

Air pollution is the most prominent and dangerous form of pollution.
It occurs due to excessive burning of fuel for cooking, driving, and other industrial activities.
Smoke from chimneys, factories, vehicles, or burning of wood releases sulphur dioxide into the air, making it toxic.
Effects of air pollution include global warming, acid rain, increased temperatures, erratic rains, and droughts.
Air pollution causes asthma and cancer in the lungs.

Water Pollution

Water pollution has taken a toll on all surviving species of the earth, with almost 60% of species living in water bodies.
It occurs due to industrial wastes dumped into rivers and other water bodies, causing an imbalance in the water and death of aquatic species.
Spraying insecticides and pesticides on plants pollutes the groundwater system, and oil spills in the oceans have caused irreparable damage to water bodies.
Eutrophication occurs due to daily activities like washing clothes and utensils near lakes, ponds, or rivers, blocking sunlight and reducing oxygen.
Water pollution harms aquatic beings and contaminates the entire food chain, affecting humans.

Soil Pollution

Soil pollution occurs due to incorporation of unwanted chemicals in the soil due to human activities like insecticides and pesticides.
Release of industrial waste, mining, and deforestation also exploit the soil.
Soil pollution makes it unfit for plants, leading to soil erosion.

Noise Pollution

Noise pollution is caused when noise affects our ears and leads to psychological problems like stress, hypertension, and hearing impairment.
It is caused by machines in industries, loud music, and other sources.

Pesticides

Pesticides are a group of chemical compounds used for the elimination or control of pests.
Insecticides are a type of pesticide used to kill insects, including ovicides and larvicides used against insect eggs and larvae.
Organophosphate and carbamate insecticides, as well as organochlorine insecticides, are major classes of insecticides.
Rotenone is a type of insecticide used to kill insects and fish, and also to treat scabies and head lice on humans and parasitic mites on chickens.

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Description

This quiz covers the basics of pollution, its forms, and its effects on the environment and human health.