Describe The Principal Constituents Of Earth?
The principal constituents of the earth can be considered in four broad groups: The lithosphere, which is the outer skin of the earth made up of rocks and minerals, The atmosphere, which is the gas or vapor envelope around the earth, The hydrosphere, which is the liquid portion of the earth, including the water vapour of the atmosphere, the water present in oceans, seas, rivers and lakes, and the water present in rocks, and. The biosphere, which is the world Of living organisms that dwell on land, in water and in the air that we breath.