1.

I am everybody's need and there can be no life without me. Plants, animals and human beings all need me. I am used in almost everything from cooking to washing In science. I am the universal solvent. Scientists use me to mix in mixture I am precious and I should be conserved. Identify me.                        [HOTS]

A. Petroleum
B. Water
C. Oxygen
D. Oil
Answer» C. Oxygen


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