The atmosphere
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44 Terms
The Atmosphere
a thin layer of gases surrounding Earth, held in place by gravity
Why is the atmosphere essential to life on Earth
it provides vital life support systems such as protection from solar radiation, gas resources and aiding the transport of energy and water around the globe
Proportions of dry air
nitrogen 78%
oxygen 20%
carbon dioxide 0.04%
rare gases 1%
ozone 0.000007
How do gases for natural processes support life
the atmosphere contains CO2, O2, H and N2. These are needed to make biological molecules used by living organisms. Carbohydrates, lipids, and proteins all contain carbon, oxygen and hydrogen. Proteins also contain nitrogen
How does absorption of EM radiation from the sun support life
How does support life
How does support life
How does support life
How does support life
