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Mnenie [13.5K]
3 years ago
14

What is the last step in the formation of new oceanic crust?

Geography
2 answers:
iris [78.8K]3 years ago
7 0

Answer:

Underwater sea vents cause currents that break off the continental crust, forming oceans in between.

I think? I Apologize if it's incorrect. I just put the in order by memory

madreJ [45]3 years ago
3 0
The answer is 1 magma rises from the earth’s mantle.
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The coal and the oil are both fossil fuels. They have both been very important for the development that the humans have experienced since the Industrial Revolution as they were what provided the energy needed for this process, and they still do.

The coal is a fossil fuel that has formed from woody material, mostly from the Carboniferous forests. Once these forests collapsed, they were quickly covered with water, mud, and sediments. Over time they were covered with even more sediments, so they were getting deeper into the crust. As they were getting deeper into the crust this material was exposed to higher temperatures and pressures, leading to the formation of the coal over the course of millions of years.

The oil is a fossil fuel that has formed from the remains of the marine life, mostly algae. As the algae and the other marine organisms have been dying out, they have fallen on the bottom of the oceans, quickly being covered with the soft sediments. As more and more sediments have been placed on top of them, they too were getting deeper into the crust, so they were also exposed to higher temperatures and pressures, eventually leading to the formation of the oil over the course of millions of years.

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