Question

Match List-I with List-II and choose the correct answer.

List-I		List-II
1	Nitrogen rich fertilizers	p	Ozone depletion
2	Carbon dioxide	q	Eutrophication
3	Carbon monoxide	r	Greenhouse effect
4	CFC’s	s	Air pollutant

• A. 1-p, 2-q, 3-r, 4-s
• B. 1-q, 2-r, 3-s, 4-p
• C. 1-r, 2-s, 3-p, 4-q
• D. 1-s, 2-p, 3-q, 4-r

Hint:

Understanding the environmental impacts of these substances is critical for sustainable living.

Answer 1

The Correct Option is B

Matching the environmental impacts with their corresponding pollutants:

1) Nitrogen rich fertilizers - q) Eutrophication: Excess nitrogen causes algal blooms and oxygen depletion in water bodies.

2) Carbon dioxide - r) Greenhouse effect: CO₂ is the primary gas responsible for global warming.

3) Carbon monoxide - s) Air pollutant: CO is a toxic gas that reduces blood's oxygen-carrying capacity.

4) CFC's - p) Ozone depletion: Chlorofluorocarbons destroy stratospheric ozone molecules.

The correct matching is: (B) 1-q, 2-r, 3-s, 4-p

Other options are incorrect because: - (A) Incorrectly links fertilizers with ozone - (C) Mismatches all relationships - (D) Reverses several cause-effect pairs

Answer 2

1) Nitrogen-rich fertilizers : These fertilizers cause an excess of nutrients in water bodies, leading to eutrophication . This process results in excessive growth of algae and other aquatic plants, depleting oxygen levels and harming aquatic life.

• Match : 1 → q (Eutrophication)

2) Carbon dioxide : Carbon dioxide is a greenhouse gas that contributes to global warming by trapping heat in the Earth's atmosphere.

• Match : 2 → r (Greenhouse effect)

3) Carbon monoxide : Carbon monoxide is a toxic gas produced by incomplete combustion of fuels. It is harmful to humans and animals when inhaled and is classified as an air pollutant .

• Match : 3 → s (Air pollutant)

4) CFCs (Chlorofluorocarbons) : CFCs are chemicals that deplete the ozone layer in the stratosphere. They break down ozone molecules, reducing the Earth's protection against harmful UV radiation.

• Match : 4 → p (Ozone depletion)

Correct Matching:
1 → q, 2 → r, 3 → s, 4 → p