<u>Answer:
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The build-up of three oxygen created our ozone layer around two billion years ago.
<u>Explanation:
</u>
- 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:
Letter "A" is correct.
Explanation:
Globalization is the way how people get together and integrate around the world and the way things move worldwide. The reasons globalization increases so fast are the faster methods of transportations that helps people and things be anywhere, and the internet that connects people to the world in seconds.
C. the Spratly island and Taiwan claimed it
Answer:
true .... have nice day....
Answer:
Explanation:
If circumference of the earth along the equator is 24,901.92 miles, and there are 360 degrees in a circle.
24,901.92 / 360 = 69.172
157 x 69.172 = 10860.004
