SOLAR SYSTEM

Detailed explanation-1: -Earth consists of three main layers: the crust, the mantle, and the core (Figure 3.4).

Detailed explanation-2: -Starting at the center, Earth is composed of four distinct layers. They are, from deepest to shallowest, the inner core, the outer core, the mantle and the crust. Except for the crust, no one has ever explored these layers in person. In fact, the deepest humans have ever drilled is just over 12 kilometers (7.6 miles).

Detailed explanation-3: -1. The layers of the solid Earth from least dense to most dense are: lithosphere, asthenosphere, mantle, outer core, inner core.

Detailed explanation-4: -Crust: the outer layer of rock on which humans and animals live and plants grow. Mantle: a semi-solid magma layer consisting of iron, magnesium, and silicon. Core: centrally located solid mass of metal (inner core) and a liquid mass of iron and nickel (outer core). 30-Oct-2021