Are there any answer choices
Calories is watching fat intake with food. if you're trying to watch your calories yes it's the fat, because you are trying to eat less fat to maintain a good diet.
sugar crash is to much sugar intake and it makes you fatigue and go to sleep or you feel drowsy and lazy. To much sugar intake is a reason for sugar crash.
two balls until they are out
The benefit of developing your components of fitness is gaining muscle which can be brought throughout ur whole body
I think all of the above, i hope that helps! :))