Greenhouse gases help keep the surface of the earth warm by absorbing ________ emitted by the ________.
A) visible light; sun
B) ultraviolet radiation; earth
C) infrared radiation; sun
D) infrared radiation; earth
E) visible light; earth

Question

Quizplus · Accepted Answer

Greenhouse gases such as carbon dioxide and methane absorb infrared radiation emitted by the Earth's surface, which helps to trap the heat and keep the planet warm. This process is known as the greenhouse effect. Choice A is incorrect because visible light is not absorbed by greenhouse gases. Choice B is incorrect because ultraviolet radiation is not a major contributor to the greenhouse effect. Choice C is incorrect because infrared radiation is emitted by the sun, not absorbed by it. Choice E is incorrect because visible light is not absorbed by greenhouse gases.

Greenhouse Gases Help Keep the Surface of the Earth Warm