Convection currents form when warm air rises and cold air sinks. What causes the warm air to rise and the cold air to sink? A. chemical energy B. activation energy O C. a difference in density D. the law of conservation

the answer is C difference in density because hot air is less dense than cold air so hot air will rise and cold air will fall.

b.

explanation:

the answer would most likely be c, because if it's a comical piece of information, it may likely not be true, if it's a site that allows anybody to edit the content, it could mean a five year old is typing the info, and if it's a tv show produced by a celeb, it may have a biased opinion.