Science

Pollution of Air and Water

Question:

What are the different ways in which water gets contaminated?

Answer:

Water gets contaminated by the addition of:(i)Agricultural chemicals: Farmers use excessive amounts of pesticides and fertilizers to increase crop production. Thesechemicais get carried away to the water bodies due to rains and floods which lead to water pollution.(ii)Industrial wastes: Industries release harmful chemical wastes into water sources, thereby polluting them.(iii) Sewage wastes: Waste materials from kitchens, toilets, and laundry sources are also responsible for contaminating water.
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Questions and Answers

Pollution of Air and Water

Q 1.

You are a member of the municipal body of your town. Make a list of measures that would help your town to ensure the supply of clean water to all its residents.
Answer

Q 2.

At an individual level, how can you help reduce air pollution?
Answer

Q 3.

What are the different ways in which water gets contaminated?
Answer

Q 4.

Explain the differences between pure air and polluted air.
Answer

Q 5.

Describe the 'Greenhouse Effect in your own words.
Answer

Q 6.

Explain circumstances leading to acid rain. How does acid rain affect us?
Answer

Q 7.

Why does the increased level of nutrients in the water affect the survival of aquatic organisms?
Answer

Q 8.

Prepare a brief speech on global warming. You have to deliver the speech in your class.
Answer

Q 9.

Clear, transparent water is always fit for drinking. Comment.
Answer

Q 10.

Describe the threat to the beauty of the Taj Mahal.

Answer