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NCERT solutions Science Class 8 chapter 18 Pollution of Air and Water


NCERT Science Class 8

Science Textbook For Class 8

Chapter 18 - Pollution of Air and Water

Pages 252 - 253

What are the different ways in which water gets contaminated?

Q 1 | Page 252

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

Q 2 | Page 252

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

Q 3 | Page 252

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

Q 4 | Page 252

Explain the differences between pure air and polluted air.

Q 5 | Page 252

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

Q 6 | Page 252

Which of the following is not a greenhouse gas?

(a) Carbon dioxide

(b) Sulphur dioxide

(c) Methane

(d) Nitrogen

Q 7 | Page 252

Describe the Greenhouse Effect in your own words.

Q 8 | Page 253

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

Q 9 | Page 253

Describe the threat to the beauty of the Taj Mahal.

Q 10 | Page 253

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

Q 11 | Page 253

NCERT Science Class 8

Science Textbook For Class 8