Question

analyzing the asthenosphere
why are the properties of the asthenosphere important? check all that apply
the asthenosphere keeps earth’s crust from getting too hot.
earth’s plates float on the denser asthenosphere.
the depth of the asthenosphere keeps pressure on earth’s core.
the asthenosphere allows earth’s crust to move.
the asthenosphere creates earth’s magnetic field.

Explanation:

1. Analyze each option:

• "The asthenosphere keeps Earth’s crust from getting too hot" is incorrect. The asthenosphere's main role isn't heat regulation for the crust.
• "Earth’s plates float on the denser asthenosphere" is correct. The asthenosphere is a semi - fluid layer, and tectonic plates float on it.
• "The depth of the asthenosphere keeps pressure on Earth’s core" is incorrect. The asthenosphere is above the mantle, not directly related to core pressure.
• "The asthenosphere allows Earth’s crust to move" is correct. Its semi - fluid nature enables the movement of tectonic plates (crustal plates).
• "The asthenosphere creates Earth’s magnetic field" is incorrect. The Earth's magnetic field is created by the outer core.

Answer:

B. Earth’s plates float on the denser asthenosphere, D. The asthenosphere allows Earth’s crust to move