Question

The Rocks of the lower Mantle are Semi solid due to heat and pressure​

Answer 1

Explanation:

Below the Moho, the mantle is characterized by peridotite, a rock mostly made up of the minerals olivine and pyroxene. The asthenosphere is the denser, weaker layer beneath the lithospheric mantle. ... The temperature and pressure of the asthenosphere are so high that rocks soften and partly melt, becoming semi-molten.

Answer 2

The asthenosphere is the denser, weaker layer beneath the lithospheric mantle. It lies between about 100 kilometers (62 miles) and 410 kilometers (255 miles) beneath Earth's surface. The temperature and pressure of the asthenosphere are so high that rocks soften and partly melt, becoming semi-molten.