Question
What is the concept of sustainable development?
What is the concept of sustainable development?
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Chapter: Concerns about our Environment
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Question
What is meant by saying the calorific value of natural gas is 50 kJ/g?
What is meant by saying the calorific value of natural gas is 50 kJ/g?
Question
Write the name of a gas involved in our breathing process whose increase in the atmosphere causes global warming.
Write the name of a gas involved in our breathing process whose increase in the atmosphere causes global warming.
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Write the name of the main component of biogas.
Write the name of the main component of biogas.
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Which of the following gases does not help in the depletion of the ozone layer?
Which of the following gases does not help in the depletion of the ozone layer? (a) CFC (b) NO (c) CO₂ (d)…
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State one harmful effect of ultraviolet rays.
State one harmful effect of ultraviolet rays.
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How are global warming and greenhouse effect related?
How are global warming and greenhouse effect related?
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Explain why the ozone layer is called ‘natural sunscreen’.
Explain why the ozone layer is called ‘natural sunscreen’.
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Write down the formula of Fire ice. How is methane gas obtained from it? [1+1]
Write down the formula of Fire ice. How is methane gas obtained from it? [1+1]
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Name the greenhouse gas discharged from a refrigerator
Name the greenhouse gas discharged from a refrigerator