Class 9 Chemistry · Chapter 10 · Test 9

Renewable Energy and Climate

25 MCQs covering strategies for reducing climate change including planting trees reducing livestock farming decreasing fossil fuel use increasing hydrogen and renewable energy and the environmental benefits of solar and wind energy.

MCQs

25 questions · 20 min · 25 marks

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Sample questions

The first 5 of 25. Try each one, then tap to see the answer.

Question 1
Which activity is helpful in reducing air pollution
- APlanting trees
- BBurning more fossil fuels
- CIncreasing vehicle emissions
- DIncreasing crop burning
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Answer: A
The chapter states that planting trees is helpful in removing air pollution.
Question 2
Which process carried out by plants helps clean the air
- APhotosynthesis
- BRespiration
- CCombustion
- DDistillation
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Answer: A
Plants clean the air through photosynthesis by absorbing carbon dioxide and releasing oxygen.
Question 3
Which gas is absorbed by plants during photosynthesis
- ACarbon dioxide
- BOxygen
- CNitrogen
- DSulphur dioxide
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Answer: A
Plants absorb carbon dioxide during photosynthesis.
Question 4
Which gas is released by plants during photosynthesis
- AOxygen
- BCarbon dioxide
- CMethane
- DNitrogen
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Answer: A
Photosynthesis involves absorption of carbon dioxide and release of oxygen.
Question 5
In the presence of what does photosynthesis take place
- ASunlight
- BDarkness
- CSmoke
- DFog
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Answer: A
The chapter states that photosynthesis takes place in the presence of sunlight.

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