Q1. The sun is a lot more massive than the earth; and therefore, it has a stronger Q2. What happens to radiant energy emitted by sun in space ?
Answers
Answer:
The Earth radiates energy at wavelengths much longer than the Sun because it is colder. Part of this longwave radiation is absorbed by greenhouse gases which then radiate energy into all directions, including downwards and thereby trapping heat in the atmosphere.
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Answer:
Q1. Yet if the Sun were either significantly cooler or hotter, that habitability would come to an abrupt end. All the ingredients we could conceive of wouldn’t change the simple fact: without the right energy input from our Sun, life would be an impossibility. Our Sun contains 99.8% of the Solar System’s mass, but gets lighter every day. When enough time goes by, its changes will render Earth uninhabitable. Here’s how it’s changing.
Q2. A small part of the sun's energy is directly absorbed, particularly by certain gases such as ozone and water vapor. Some of the sun's energy is reflected back to space by clouds and the earth's surface. ... Most of the radiation, however, is absorbed by the earth's surface.
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