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DATE:, S4. What do you einderstand wby earth's axis 2, Ans41 An axis is, around uohich th ginary line carsud whi, around uohich the earth spins:, Ar, 8,5. Draw the three layers of earth and, dosbidescribe them, Ans-6 The three layers f earth.are, 19-, An, Crust The top layer on which we wwalk, is known as, wrust. It is cmade, up, of rocks, soil, elay and sand., 2 Mantle:- The middle layes is knowon as, the mantle It is made up of, 3.Core The inner layoris known as, core, It iú made, hot rocks,, of, hot liguid metal., Draw the three layes o the earth from, book., page, hoi 175,, An