Answer:
(a) It is a physical change
because water is converted from its liquid state to gaseous state because of
the sun's heat.
(b) It is a physical change because water
in the radiator is converted from a liquid state to gaseous state.
(c) It is a chemical change because
combustion of kerosene occurs and new products are formed.
(d) It is a chemical change because there
is a reaction between the citric acid in the lemon and the compounds of tea
resulting in formation of new products.
(e) It is a physical change because the
cream suspended in the milk is separated by churning.
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