Chemical hand warmers come wrapped in plastic. What happens when the plastic is removed and the chemicals inside come in
contact with the oxygen in the air?
A. The mixture of chemicals takes in coldness from its surroundings.
B. A chemical reaction transforms thermal energy into chemical
energy
C. A chemical reaction transforms chemical energy into thermal
energy.
D. The mixture of chemicals takes in heat from its surroundings.

How water is moving through the ecosystem ?

Can someone pretty me with this ? it’s urgent.compare the three theories of emotion. here are the three theories of emotion. cannon-bard theory of emotion: the belief that both psychological arousal and emotional experience are produced stimultaneously ( at the same time) by the same nerve stimulus. james-lange theory of emotion: the belief that emotional experience is a reaction to bodily events occurring as a result of an external situation. ( “ i feel sad because i am crying.) schachter-singer theory of emotion: the belief that emotions are jointly determined by a nonspecific kind of psychological (bodily function) arousal and its interpretation, based on environmental ( natural surroundings) cues. which of these theories makes most sense to you? why. your response should be written using proper english spelling and grammar. and it needs to be 10 complete sentences.

Due tonight 10 points will mark brain