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Subject :NSO    Class : Class 6

Select the correct statement.

AExpansion gaps are deliberately left between the rails to allow for the contraction of the rails in hot weather.
BSolids, liquids and gases expand to the same extent if equal amount of heat is supplied.
COn cooling, solids contract the least while gases contract the most.
DNone of these

Ans 1:

Class : Class 6
Answer is. A . correct explanation is on the answer .metals expand on heating !

Ans 2:

Class : Class 6
Hey! They have given contract see properly!

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