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Answer:
Earth’s plates float on the denser asthenosphere. (B)
The asthenosphere allows Earth’s crust to move. (D)
Explanation:
The properties of the asthenosphere are important are : ( B and D )
- Earth's plates float on the denser asthenosphere
- The asthenosphere allows Earth's crust to move
The asthenosphere is the part of the earth's mantle lying below the lithosphere. it is believed to be hotter, denser and weaker than the lithosphere and it is fluid as well.
Asthenosphere lies between,100 to 400 kilometers beneath the Earth's crust, it has a high temperature and pressure which causes rocks to melt into it. it also allows the movement of the Earth's crust to move.
Hence we can conclude that the properties of the asthenosphere that makes it important are: Earth's plates float on the denser asthenosphere The asthenosphere allows Earth's crust to move
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