Respuesta :

destinyray
I'm not really sure what you mean, but it could be heated air because 'rises' could mean temperature rising, and when temperature rises, the air heats up... i hope I'm correct and this helps you. correct me if I'm wrong.
clairepoo

I also think it's hot air, but I'm pretty sure it's because hot air rises. I'm not 100% sure so I'm sorry if it wrong :)