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Give reasons

(a) A gas fills completely the vessel in which it is kept.
(b) A gas exerts pressure on the walls of the container.
(c) A wooden table should be called a solid.
(d) We can easily move our hand in air but to do the same through a solid block of wood we need a karate expert.

NCERT Class 9th Science Ch 1 Matter in Our Surroundings


C)because wood has distinct shape,size
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