Question

1.We can easily move our hand in air. But to do the same through a solid of wood, we need karate expert why?

2.The diver is able to cut through water in swimming pool .why?

3.Naphthalene balls disappear with time without leaving any solids why

4.Why cannot you smell the perfume at a short distance when incense stick is not lighted​

Answer 1

3.because of sublimation the solid changes into gas

Answer 2

Answer:

we can easily move our hand in air because distance between its particles more in comparison to wood particles so we need karate expert to move hand through wood