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Subject :NSO    Class : Class 7

Warm water is poured slowly into a beaker of ice cubes as shown here.

What can be observed when the warm water is poured into the beaker?
(1) The ice starts melting.
(2) The glass expands.
(3) The temperature of the ice decreases.
(4) The temperature of the warm water decreases.

A1 and 4 only
B2 and 4 only
C1, 3 and 4 only
DAll of these


Ans 1:

Class : Class 7
the explanation shows different data, it says that all of these are correct but in that statement 3 has increases but in the question statement 3 has increases so it should be 1,2 and 4 but that option doesnt exist and the correct answer box says correct answer is A so in summary:1)answer box says correct answer is A which is false since 2 is also there2)the explanation says D is correct but the in that 3 has increases instead of decreases3)the correct answer which should be 1,2 and 4 only doesnt even exist

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