<u>Answer:
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The build-up of three oxygen created our ozone layer around two billion years ago.
<u>Explanation:
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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:
primary consumer
Explanation:
it would be because of how the food web is built
Answer:
South Korea, Vietnam and Indonesia, but also that the region as a whole is on its way to eclipsing the West. ... Today, the Asian continent confronts two major challenges. Pakistan, also a virtually failed state, faces unprecedented .Civilian rule, all while locked in a nuclear arms race with archrival India
Answer:
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Explanation:
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