hi, black macbook. Over the past few days, ive noticed the internal fan comes on increasingly. Could this be due to the room temperature being too warm/hot? Or just purely based on number of apps open and what im doing? Does it matter if one app is open? or if 10 apps are open? I have three diff internet browsers on the go (dont ask) i need them all. This is ok, isnt it? Or would it be better if i had 3 windows open of the same internet browser? thanks.