WILL MARK AS BRAINLIEST

Answer below...

Explanation:

- The basis of how the balloon works are that warmer air rises in cooler air. This is because hot air is lighter than cool air as it has less mass per unit of volume.

- Convection is the method of thermal energy that occurs in hot air balloons. Thermal energy is transferred when the air above the flame becomes warm and less dense and rises. Cool, dense air sinks and takes the place of the warm air that rises. The cool air is warmed by the flame, becomes less dense, and rises.

- The pressure inside the hot air balloon is affected by temperature. As the molecules heat up, they move faster and strike the inside wall of the balloon harder. This increased motion of the gas particles increases the force on an area of the balloon, producing a rise in the pressure.

chemical properties are the characteristic of matter which can only be observed by changing the chemical identity of a sample like flammability reactivity and toxicity.

there are two significant figures.