Q.

Due to Anomalous expansion of water

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By Expert Faculty of Sri Chaitanya

a

aquatic animals can exist in cold countries

b

aquatic animals can die

c

water completely freezes

d

all of the above

answer is 1.

(Detailed Solution Below)

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Detailed Solution

density of water is maximum at 4 degree Centigrade, as atmosphere temperature falls, when atmosphere is at 4C ,top layer of water sinks to bottom of lake, as atmosphere temperature falls to 0 degree centigrade and top layer freezes but bottom layer of lake at 4C will remain in liquid state , where aqualife survive
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