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What is the Greenhouse effect?

If it were not for greenhouse gases trapping heat in the atmosphere, the Earth would be a very cold place.Greenhouse gases keep the Earth warm through a process called the greenhouse effect.The Earth gets energy from the sun in the form of sunlight.The Earth's surface some of this energy and heats up.That's why the surface of a road can feel hot even after the sun has gone down-because it has absorbed a lot of energy from the sun.

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