Convection.Convection is the process where a fluid (liquid or gas) moves and transports heat due to hotter fluid rising and cooler fluid sinking due to differences in density.
The internal temperature will depend on various factors such as the load on the balloon, it's size, and the ambient air temperature. The loading of the balloon will generally be arranged such that...
Both. Heating and cooling deal with energy gained and lost on a quantum to molecular scale (smaller than an atom up to molecules) where the wavelength in this case infrared or larger decides how...