Ozone Layer Reduction 1979-1990
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Question (English)
A reduction of approximately what percentage in the ozone layer was detected from 1979 to 1990?
- 2 per cent
- 5 per cent ✓ Correct
- 10 per cent
- 15 per cent
Explanation:
Correct Answer Explanation
A reduction of approximately 5 per cent in the ozone layer was detected from 1979 to 1990.
Key Points:
- Ozone layer prevents harmful UV wavelengths from passing through Earth's atmosphere.
- UV radiation is responsible for skin cancer in humans.
- It affects phytoplankton, aquatic organisms, and terrestrial plants.
Why Other Options Are Wrong
- A, C, D: The correct figure is approximately 5 per cent.
📚 About this Topic — CH-7: ENVIRONMENT AND SUSTAINABLE DEVELOPMENT
This multiple choice question is from CH-7: ENVIRONMENT AND SUSTAINABLE DEVELOPMENT, Indian Economic Development, NCERT Books. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from CH-7: ENVIRONMENT AND SUSTAINABLE DEVELOPMENT to strengthen your preparation.
