Assuming 50% efficiency, 150 kcals of chemical energy would result in of kinetic energy. A.
50 kcals
B.
75 kcals
C.
100 kcals
D.
150 kcals

I think it is option D but I am not totally sure about it

Depression is lifelong, though you can get medication to with it. the difference between sadness and depression is that sadness lasts a little bit, depression last a long time and it goes on and off. people usually get depression through experiences they have been through, or genetics.

True. the more you know, the better of you will be.