Question

Greenhouse effect caused warming of Earth due to;
A) Infrared rays reaching earth.
B) Moisture layer in atmosphere.
C) Increase in temperature due to increase in carbon dioxide concentration of atmosphere.
D) Ozone layer of atmosphere.

Answer 1

Hint:Greenhouse effect is a naturally occurring process which warms the Earth’s surface. Global warming is the heating up of Earth due to the trapping of radiations by greenhouse gases.

Complete answer:
When the concentration of greenhouse gases in the atmosphere increases, more heat or radiation is trapped by them, thereby heating up the surface of Earth.
So now let us analyze each of the options given above and get us into the correct option;
>Option A: Infrared rays reaching earth are not the cause of greenhouse effect. Therefore, this is the incorrect option.
>Option B: Moisture layer in the atmosphere, which is referred to the lowermost layer of the atmosphere, does not show greenhouse effect. Therefore, this is the incorrect option.
>Option C: Increase in temperature due to increase in greenhouse gases like carbon dioxide, methane, etc leads to warming which is the real cause of greenhouse effect. Therefore, this is the correct option.
>Option D: The Ozone layer of the atmosphere does not show a greenhouse effect. As we have already found the right option, this is the incorrect option.

Thus, the correct option is C) Increase in temperature due to the increase in carbon dioxide concentration of atmosphere.

Note:Infrared radiation makes up 49.4% of the light that reaches Earth's surface. To balance the energy, the amount of infrared radiation energy emitted by Earth has to be equal to the amount of energy absorbed from the sunlight. Most of the water vapor in the atmosphere lies in the troposphere. The ozone layer is the protective layer of Earth saving it from harmful UV rays.