Which layer of atmosphere has the greatest density? (a) Troposphere (b) Stratosphere (c) Mesosphere (d)...
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Chapter: Concerns about our Environment
Mention one fuel which is alternative to fossil fuel
Mention one fuel which is alternative to fossil fuel
Write the name of a gas which increases atmospheric temperature.
Write the name of a gas which increases atmospheric temperature. [1] OR Fill in the...
Which type of energy is transformed to electrical energy in
Which type of energy is transformed to electrical energy in a dynamo?
Which of the following gases helps in the depletion of
Which of the following gases helps in the depletion of ozone in the ozone layer?...
Name a gas present in the atmosphere which is not
Name a gas present in the atmosphere which is not a greenhouse gas.
What is meant by the calorific value of a sample
What is meant by the calorific value of a sample of coal is 30,000 kJkg-1?...
Mention two possible future effects of global warming on environment.
Mention two possible future effects of global warming on environment.