Me trying to figure why jiraiya had to die when he had good times with naruto T-T

Normally it is at the top left, above where the music starts.

True, because it rids of unwanted shadows or illusions.

Because temperature doesn't matter. in this case, if you leave a portion of hot sauce on your tongue, it will burn. (you could even get a second degree ) !

Cwould be this answer i think.

hope i could