The plague was spread because of the poor hygeine back in that time
<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:
I believe the answer is E.
Explanation:
From what I know Palestine is controlled by Israel which is why they attack and rebel against Israel.
Answer:
Mexico
I think that's right if not pls forgive me.
