Question

Knows the information about the Earth's crusts and shows the solution for its
maintenance.​

Answer 1

Answer:

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Explanation:

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Answer 2

Answer:

Oceanic crust and continental crust.

Explanation:

The crust of Earth is of two distinct types:

Oceanic: 5 km (3 mi) to 10 km (6 mi) thick[2] and composed primarily of denser, more mafic rocks, such as basalt, diabase, and gabbro.

Continental: 30 km (20 mi) to 50 km (30 mi) thick and mostly composed of less dense, more felsic rocks, such as granite.