Question

I Need Answers For 7th And 8th

Answer 1

Answer:

8) 1. no particles

2. C or D idk

Answer 2

Explanation:

7)

The diagram may be the gas particles are close to each other

1)Gas particles move freely in all directions.

2)Air pressure is caused by the gas particles hitting the surface.

3)You can increase air pressure by putting more air into a tyre.

8)

1) A vaccum is a space which contains no particles.

2)The bottle collapses becuase the air pressure on outside pushes it in.