GEOLOGY

Detailed explanation-1: -Earth Science, Geography, Geology, Physical Geography The mantle is the mostly-solid bulk of Earth’s interior. The mantle lies between Earth’s dense, super-heated core and its thin outer layer, the crust. The mantle is about 2, 900 kilometers (1, 802 miles) thick, and makes up a whopping 84% of Earth’s total volume.

Detailed explanation-2: -From space, Earth looks like a blue marble with white swirls. Some parts are brown, yellow, green and white. The blue part is water. Water covers most of Earth.

Detailed explanation-3: -The five characteristics of Earth necessary to sustain life are the atmosphere, the hydrosphere, temperature, gravity, and atmospheric pressure.

Detailed explanation-4: -Everything in Earth’s system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called “spheres.” Specifically, they are the “lithosphere” (land), “hydrosphere” (water), “biosphere” (living things), and “atmosphere” (air).