1. Why is the ozone layer depletion harmful to life forms?
2. Explain the formation of acid rain.
3. Justify air pollution as one of the main killers of living organisms.
4. Copy and complete the Table 6.4.
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Answer:
1- Ozone layer depletion is harmful to life form because their are lot of rays which is harmful for our body and our dosen't need that types of ray.
2- When the vapour of smokes,and other harmful chemical go in the environment and get mix with air and forms a acidic environment and during the rain it comes in the form of acid into the earth .
3- Air pollution create a lot of problem and disease and it is also harmful for our lungs also.
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Answer 1st:-
Ozone layer depletion causes increased UV radiation levels at the Earth's surface, which is damaging to human health. Negative effects include increases in certain types of skin cancers, eye cataracts and immune deficiency disorders. ... UV rays also affect plant growth, reducing agricultural productivity.
Answer 2nd:-
Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. These substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.
Answer 3rd:-
As the world gets hotter and more crowded, our engines continue to pump out dirty emissions, and half the world has no access to clean fuels or technologies (e.g. stoves, lamps), the very air we breathe is growing dangerously polluted: nine out of ten people now breathe polluted air, which kills 7 million people every year.
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