Global warming is caused due to:

trapping of excessive heat due to green-house gases.

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reflections of radiations due to green-house gases.

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trapping of excessive heat inside the Earth.

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population explosion.

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Solution

The correct option is A trapping of excessive heat due to green-house gases.
Global warming is caused due to the greenhouse effect. Earth's atmosphere allows infrared radiations (heat radiations) to pass through it and reach the Earth's surface. When these rays are reflected back from the earth's surface, most of the heat is absorbed by greenhouse gases. This raises the temperature of the Earth's atmosphere.

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Similar questions

Green house gases (carbon dioxide, methane, etc) are useful for atmosphere as it traps heat in the atmosphere so that there is a proper balance of temperature. But excessive amount of greenhouse gases cause several problems. Which among the following is caused due to the excessive release of green house gases in the atmosphere?

Q. Consider the following statements about Green House Effect and Global Warming.

1

. The temperature surrounding the Earth has been rising during the recent past is due to the 'Green-house effect'.

2

. A green house is a glass chamber in which plants are grown to provide them warmth by trapping sun light.

3

. The phenomenon of heat build-up inside a glass chamber from the absorption of solar radiation is called greenhouse effect.
Which of the statements given is/are correct?

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Q. Earth is kept warm due to green house flux.

Q. Heat that radiates back from green house gases (green house flux) causes

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