Question

EXERCISE-1 Name the four main sources of water Site the importance of water cycle in nature. Why is water very precious for all living Name the two gases from which water is formed What is the chemical composition of these two gases in water? Give the molecular formula of 6. Give reasons: (a) Water is used as a cooling apel (b) Water pipes buest in severe winters. (c) It is difficult to cook in hills as compared to plains (d) lee floats on water fe) Sea water does not froede at DC. 7. How does anomolous expansion of water help the aquatic organisms in cold climates? 5 What is the effect on boiling point of water when (a) pressure is increased (b) impurity is added​

Answer 1

Answer:

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Explanation:

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