Question
Name a gas present in the atmosphere which is not a greenhouse gas.
Name a gas present in the atmosphere which is not a greenhouse gas.
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Chapter: Concerns about our Environment
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Question
Which of the following gases helps in the depletion of ozone in the ozone layer?
Which of the following gases helps in the depletion of ozone in the ozone layer? CO2 Ar CFCs He
Question
Which type of energy is transformed to electrical energy in a dynamo?
Which type of energy is transformed to electrical energy in a dynamo?
Question
What is the SI unit of calorific value of fuels?
What is the SI unit of calorific value of fuels?
Question
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 blank : [1] __ radiation, coming from…
Question
Mention one fuel which is alternative to fossil fuel
Mention one fuel which is alternative to fossil fuel
Question
Which layer of atmosphere has the greatest density? (a) Troposphere (b) Stratosphere (c) Mesosphere (d) Thermosphere
Which layer of atmosphere has the greatest density? (a) Troposphere (b) Stratosphere (c) Mesosphere (d) Thermosphere