yes
Hot air rises and cold air falls.
No Gas Just hot air which is why it is called a hot air balloon. If you were wondering hot air is lighter than cold air which makes it rise so when it is trapped inside the balloon the whole thing will rise.
heat
because the air becomes less dense and spreads out so becomes hotter and hot air rise so the balloon does.
In general, hot means the substance is less dense. Less dense things tend to rise when they are in more dense things.
Fire makes things rise as it is a very strong source of heat. So does hot air. Fire causes hot air and because hot air is lighter than cold air, it rises. Is that good? (my first answer X3)
Hot air balloons and thermal air currents are two things that use hot air to rise. The heating of the air makes it less dense, causing it to become buoyant and lift objects or create upward movement.
clouds
Cold will sink to the bottom. Hot water will rise to the top.
i
Flames rise because the hot gases they consist of are lighter than the surrounding air and therefore experience buoyant forces that push them upwards. Gravity still acts on the flames, but the buoyant force is stronger, allowing them to rise.
Hot air is much lighter than normal air. And we know that according to gravitational pull of earth lighter things go up. Therefore hot air ballon rises up.
Hot-air balloons can rise up into the air because hot air is lighter, allowing it to float up into the sky.
Hot air
Mostly get hot and rise.
yes