Q.

Which of the following is not a man made change?

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21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
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a

Burning of petrol

b

Breaking of a brick

c

Change of day and night

d

Formation of curd

answer is C.

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Detailed Solution

Change of day and night is a natural change, so it is not a man made change.

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