1.

Fill in the blanks : (a) The liquid in the earth’s core has a temperature of about ……………. . (b) …………., ….……., ……….., are factors necessary for the existence of living things. (c) The ……………. rays of the sun are absorbed in the atmosphere. (d) ………………. % of the earth’s surface consists of water. (e) We get useful substances like ……………., ……………., from sea water.

Answer»

Fill in the blanks :



(a) The liquid in the earth’s core has a temperature of about ……………. .



(b) …………., ….……., ……….., are factors necessary for the existence of living things.



(c) The ……………. rays of the sun are absorbed in the atmosphere.



(d) ………………. % of the earth’s surface consists of water.



(e) We get useful substances like ……………., ……………., from sea water.



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