The air is __% oxygen
21%
It's a result of photosynthesis carried out by plants, algae, and some bacteria. What is it?
Oxygen
It is produced by living things when they breathe. What is it?
Carbon dioxide
The most abundant gas in the atmosphere is...
Nitrogen
The Earth's atmosphere has 7 layers. True or false?
False, it has 5 layers
Name all 5 layers of the Earth
exosphere, thermosphere, mesosphere, stratosphere, troposphere
The outermost layer of the atmosphere at 600KM, it also has a very low concentration of gases.
exosphere
This layer absorbs the most powerful types of radiation from the sun.
thermosphere
The upper part of the thermosphere where temparatures can reach up to 1000 C.
ionosphere
This layer is 50-85KM away from Earth and the temparatures drop to -100C.
mesosphere
This is where TV and radio waves are.
mesosphere
This layer is 12 to 50KM away from the surface. You can find the ozone layer here.
stratosphere
This layer absorbs the UV rays at about 25KM from Earth.
Ozone layer
This layer is 12KM above sea level and where life exists.
troposphere
This is where meteorological phenomenas such as wind and rain happen.
troposphere
The air is __% nitrogen.
78%
