GEOLOGY

Detailed explanation-1: -Oceanic Crust is the thinnest layer of earth.

Detailed explanation-2: -The term soil refers to the soft, thin layer on the earth’s surface on which plants grow. Soil contains both organic and inorganic substances in large quantity. Soils are generally formed through the breaking down of rocks.

Detailed explanation-3: -Troposphere. The lowest and thinnest layer of the atmosphere is called the troposphere. According to NASA, the average thickness is about 7.5 miles.

Detailed explanation-4: -In relation to the other layers the crust is the thinnest and the least dense layer. It floats on the softer, denser mantle. The crust is made up of solid rock but these rocks are not the same all over the world.