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Answer:
the earth is not flat at all
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The build-up of three oxygen created our ozone layer around two billion years ago.
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- The ozone layer is a part of the stratosphere which is located right after the troposphere in the atmosphere of the Earth.
- The ozone gas is made up of the abundance of three oxygen molecules combining with the ultraviolet radiation emitted by the Sun.
- The development of the ozone layer happened around two billion years ago when the oxygen concentration levels on the planet began to rise slowly and gradually.
Answer:
Tundra ecosystems are treeless regions found in the Arctic and on the tops of mountains, where the climate is cold and windy
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Answer:
The act of patriotism and feeling patriotic are things which will make for a stronger nation. Not only will you be able to relate well to others in your shared love for this country but the more individuals who express their patriotic feelings, the stronger our country will be as a whole
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