Answer:
Phreatomagmatic
Explanation:
These eruptions are produced when magma comes in contact with shallow groundwater causing the groundwater to flash to steam and be ejected along with pre-existing fragments of the rock and tephra from the magma.
At first, they were obeying King George but later on, they became rebellious and many events happened that led to the revolutionary war. For example, the Boston tea party, the Boston Masacare, and many others.
Answer:
They grow
Explanation:
they grow from air, water, energy and sun
<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.
