<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:The country is bordered by China and Russia… Philippines, island country of Southeast Asia in the western Pacific Ocean.
Explanation:
Many people live on the Ring of Fire because the Pacific Ocean is an important zone of world trade. Additionally, many tourists are drawn to the beauty created by the volcanic islands and mountains near the ocean.
hope this helps
Answer:
In the top left
Explanation:
On a map, the top has numbers or letters. Same goes for the left side. Since "A" and "1" are the first in the alphabet and while counting, it comes first. As you go out, the letter and number will change.
Example: A1, A2, B1, B2
Has high internal temperatures...hope this helps :)
