Question

2] a. upper mantle, b. Lower mantel

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Answer 1

Answer:

ANS A)-------The upper mantle of Earth is a very thick layer of rock inside the planet, which begins just beneath the crust and ends at the top of the lower mantle at 670 km. Temperatures range from approximately 200 °C at the upper boundary with the crust to approximately 900 °C at the boundary with the lower mantle.

ANS B) --------The lower mantle is the liquid inner layer of the earth from 400 to 1,800 miles below the surface. The lower mantle has temperatures over 7,000 degrees Fahrenheit and pressures up to 1.3 million times that of the surface near the outer

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Answer 2

Answer:

a . The upper mantle of Earth is a very thick layer of rock inside the planet, which begins just beneath the crust and ends at the top of the lower mantle at 670 km. Temperatures range from approximately 200 °C at the upper boundary with the crust to approximately 900 °C at the boundary with the lower mantle.

b . The lower mantle is the liquid inner layer of the earth from 400 to 1,800 miles below the surface. The lower mantle has temperatures over 7,000 degrees Fahrenheit and pressures up to 1.3 million times that of the surface near the outer core.

Explanation:

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