which of the following is true about layer 4 all solid part of the mantle. partially liquid magma part of the mantle.
The following statements are true about the layers of the mantle:
1. Layer 4: Solid part of the mantle: The solid part of the mantle, also known as the lower mantle, is composed of solid rock materials. It is primarily made up of silicate minerals.
2. Partially liquid magma part of the mantle: The partially liquid part of the mantle is referred to as the asthenosphere. This region is semi-fluid due to the high temperature and pressure, causing the rock materials to partially melt. This semi-fluid state allows for the movement of tectonic plates.