Myztiques hot air balloon

When a hot air balloon goes to land they pull the red rope to open the parachute so the hot air can come out of the hot air balloon. and so cold air can come in so the people in the hot air balloon can come down from the basket can come down slowly  down in the middle of the road.

For the hot air balloon to go up fill the hot air balloon with hot air so the hot air balloon can go up In the sky. And the hot air goes up and the cold air goes down then the hot air is less dense than

The cold air ,so it rises.