GEOLOGY

Detailed explanation-1: -Temperature decreases with height throughout the mesosphere. The coldest temperatures in Earth’s atmosphere, about-90° C (-130° F), are found near the top of this layer. The boundary between the mesosphere and the thermosphere is called the mesopause.

Detailed explanation-2: -Answer and Explanation: The coolest layer of the earth is the crust. The mantle is hot enough to melt rocks, and the cores are even hotter.

Detailed explanation-3: -The lithosphere is the coolest layer of the Earth in terms of temperature, with the heat from the lower layers generating the plate movements.

Detailed explanation-4: -Answer and Explanation: The Earth’s layers from coolest to hottest are: crust, mantle, outer core, and inner core.

Detailed explanation-5: -The lithosphere includes both the crust and the brittle upper portion of the mantle. The lithosphere is both the coolest and the most rigid of Earth’s layers.