Question

give reason can easily move our hand in air, but do the same through a solid block of wood need a Karate expert
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Answer 1

Answer:

Explanation:

It happens because as we know that air is a gas...so the particles of matter are very loosely packed, as a result of which, we are able to move our hand easily in the air.

To do same through a block of wood, we need a karate expert because wood being a solid has its particles of matter very tightly packed, hence, we need a karate expert to break through a wooden block.

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Answer 2

Air is a gas, it has more space in between particles. But solid block of wood is rigid, hence it is difficult to move our hands through it.