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प्रश्न
Prepare a brief speech on global warming. You have to deliver the speech in your class.
उत्तर
Global warming is an increase in the average temperature of the Earth’s surface. It occurs as a result of an increased concentration of greenhouse gases in the atmosphere. The greenhouse gases include carbon dioxide, methane, and water vapour. These gases trap solar radiations released back by the Earth. This helps in keeping our planet warm and thus, helps in human survival. However, an increase in the amount of greenhouse gases can lead to an increase in the Earth’s temperature leading to global warming.
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संबंधित प्रश्न
Define 'Greenhouse effect'.
What would have been the temperature of earth's atmosphere in absence of green house gases in it?
Name the following:
Name three greenhouse gases.
Fill in the blank
Along with carbon dioxide and methane, ___________ is a potent greenhouse gas.
State three causes that have led to an increase in greenhouse gases in the atmosphere.
State the consequence of the greenhouse effect.
Give the options for reducing green house gases by use of fuels better than fossil fuels.
How will you minimize heat loss due to the following:
Convection
A red hot ball is suspended from the ceiling of a room using a thin metallic wire.
Suggest the way by which it loses the least amount of heat.
Give two examples of Greenhouse gases.
