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chemistry
avatarAsked on December 26, 2019 by Selvi Aman

Which of the following is a recently originated problem of environment?

A

Global warming

B

Ozone depletion

C

Greenhouse effect

D

All of these

Answer

Global warming, also referred to as climate change, is the observed century-scale rise in the average temperature of the Earth's climate system  and its related effects.

Ozone layer depletion is simply the wearing out (reduction) of the amount of ozone in the stratosphere. Unlike pollution, which has many types and causes, ozone depletion has been pinned down to one major human activity. 

Depletion begins when CFC's get into the stratosphere.

The greenhouse effect is the process by which radiation from a planet's atmosphere warms the planet's surface to a temperature above what it would be without its atmosphere.

Hence the option D is correct.

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