_______________ is the movement of molecules across a cell membrane from a region of their lower concentration to a region of their higher concentration.
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The Chemical formula of Methanol is _____.
What is the process of melting also called?
Which of the following is used as anaesthetics?
What is the process of rust forming on iron called?
What is used to prevent freezing of fuel in space crafts?
........... is not a sub atomic particle of an atom.
Which of the following is the best fire-extinguisher?
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