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The atmosphere's composition is caused BY life. When the Earth was formed the atmosphere was Nitrogen, CO2, and Methane and water vapour. Life has removed much of the methane and CO2 and added Oxygen. Therefore life and the atmosphere (and the rocks of the planet) are one big unified system with lots of biological cycles happening with them.
When O2 was added to the atmosphere this formed O3 (Ozone) in the upper atmosphere and this then blocked out most of the Sun's harmful (to life) ultraviolet radiation. When this happened it was possible for life to start colonising the Earth's land areas.
The atmosphere also blocks out most of the harmful cosmic radiation that impinges on the planet.
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Why does the atmosphere have layers?
because they are made up of gases and the gases protect the earths life forms.
What is the earths atmosphere's purpose?
to protect us from the sun's harmful rays
What essentials for life are found in earths atmosphere?
The Earths atmosphere protects the earth from meteors and it tgives us oxygen
How does the the earths atmosphere support life?
Bc its cool
Why does earths atmosphere absorb radiation?
It absorbs radiation to protect it. It protects from UV rays.
How do greeenhouse gases protect earths atmosphere?
They dont they just make the earth hotter
Why is earths atmosphere good for life?
it bounce back the UV radiations
What are rockets made off?
steel, with durible titanuim palting to protect it from breaking up in earths atmosphere
What does earths atmosphere protect from us?
The ozone layer protect us from the UV raysSo we don't burn up from the Sun's ultra-violet rays.
How does the atmosphere make earths temperatures suitable for life?
because of fat dicks
Why is the Earths atmosphere needed for life?
because it keeps the air inside the earth
Which was least likely to have been a component of earths atmosphere before life began?
oxygen
