2. How is soil formed?
1. List any three human activities that you think would lead to air pollution?
Answers
1st Answer : Soil is formed by breaking down of rocks at or near the surface of the Earth through various physical, chemical, and biological processes by various factors such as the sun, water, wind, and living organisms. ... These cracks lead to the breaking up of huge rocks into smaller pieces.
2nd Answer :- The human activities that lead to air pollution:-
1) Burning of fossil fuels:
Sulfur dioxide released by the burning of fossil fuels like coal, petroleum is the major cause of air pollution.
Gases emitted from vehicles including trucks, jeeps, cars, trains, aeroplanes cause an immense amount of pollution.
2) Agricultural activities:
Use of insecticides, pesticides and fertilizers in agricultural activities release harmful chemicals into the air and can also cause water pollution.
3) Exhaust from factories and industries:
Manufacturing industries release a large amount of carbon monoxide, hydrocarbons, organic compounds, and chemicals into the air thereby depleting the quality of air.
Petroleum refineries release hydrocarbons and various other chemicals that cause air pollution.
Answer:
1. Driving of cars for short distances rather than a walk or cycle.
2. Exposing hazardous and poisonous chemicals by the chemical factories.
3. Use of a lot of firecrackers.
hope it helps!