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How is Earth's crust recycled?


Earth's crust is not recycled; it is only created.



As molten rock seeps out of weak spots in the crust, volcanoes are formed.



When plates slide past each other, creating friction, an earthquake forms.



As new crust is created, the old crust is forced down deep inside Earth's mantle, where it becomes molten rock again.

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The Earth's crust is recycled when a new crust is created and the old crust is forced into the Earth's mantle, where it becomes molten rock again.

This fact occurs due to tectonic activities, and occurs in a cycle of 500 million years.

Some evidence found by researchers as signs of recycling of the earth's crust was through the analysis of rock samples in Canada, which had a chemical element similar to that existing in the crust 4.2 billion years ago.

Other evidence found was through volcanic activities, where scientists analyzed an isotope called Samarium-146 that was present in the formation of planet Earth, but which has since been extinct.

This scientific evidence therefore supports the fact that there is a recycling of the Earth's crust.

The correct alternative is:

  • As new crust is created, the old crust is forced down deep inside Earth's mantle, where it becomes molten rock again.

Learn more about Earth's crust here:

https://brainly.com/question/7786540

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