Question

[1]Give reason, we can easily move our hand in air compared to moving hands in swimming pool​

Answer 1

Answer:

articles of air have large spaces between them. On the other hand, wood has little space between its particles. Also, it is rigid. For this reason, we can easily move our hands in air, but to do the same through a solid block of wood, we need a karate expert.

Explanation:

Answer 2

Answer:

Explanation:

The force acting per unit area on the walls of the container is called pressure. Thus, gases exert pressure. ... (d) In air, there is lot of empty space between the molecules and the forces between the particles are almost negligible. Hence, we can move our hand in air.

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