Ground water keept the ground at a stable level when it is gone the cavern it was in has no support and is at risk of callaps
Answer:
Vacuum. A sound vacuum was created, i believe.
The molecules are continually colliding with each other and with the walls of the container. When a molecule collides with the wall, they exert<span> small force on the wall The </span>pressure exerted<span> by the </span>gas<span> is due to the sum of all these collision forces.The more particles that hit the walls, the higher the </span>pressure<span>.</span>
Elements to the left tend to form positive ions is the right answer mark me brainlist
