Environmental Issues Easy Questions and Answers | Page - 22

Environmental Issues

Acid rain is caused by increase in the atmospheric concentration of:

1. SO₃ and CO
1. CO₂ and CO
1. O₃ and dust
1. SO₂ and NO₂

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60% – 70% SO₂ and 20% – 30% NO₂ contribute to the acid rain.

Correct Option: D

60% – 70% SO₂ and 20% – 30% NO₂ contribute to the acid rain.

Which one of the following statements is not valid for aerosols?

1. They alter rainfall and monsoon patterns
1. They cause increased agricultural productivity
1. They have negative impact on agricultural land
1. They are harmful to human health

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Aerosols through its direct or indirect effects on plants can cause various problems in agriculture. However, continuous increase in air pollution may represent a threat to agriculture in the future that is persistent and largely irreversible.

Correct Option: B

Aerosols through its direct or indirect effects on plants can cause various problems in agriculture. However, continuous increase in air pollution may represent a threat to agriculture in the future that is persistent and largely irreversible.