How does a Hot Air Balloon Fly?

hot air rises while cold air sinks. This means the balloons fly because the hot air inside weighs less than the air on the outside - causing it to float upwards.

Explanation:

The air inside the balloon rises while the cold air sinks. That causes the hot air inside to weigh less than the air on the outside. Then the hot air balloon  floats in the air.

Explanation:

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.

answer; talc and gypsum;