Methane Concentration Increase
Atmospheric concentrations of methane (CH₄) have increased by what percentage above pre-industrial levels since 1750?
- 31 per cent
- 75 per cent
- 100 per cent
- 149 per cent — Correct Answer
Explanation:
Correct Answer Explanation
Atmospheric concentrations of CH₄ have increased by 149 per cent above pre-industrial levels since 1750.
Key Points:
- CO₂ increased by 31%; CH₄ by 149%.
- Methane is released from animal waste and cattle production.
- These are greenhouse gases contributing to global warming.
Why Other Options Are Wrong
- A (31%): This is CO₂ increase, not methane.
- B, C: Incorrect figures.
📚 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.
