1.Why do you think some activities use more calories than others? 2.Which activity uses more calories :gradening ỏ walking? 3.How many calories do you use doing aerobics for 2 hours? 4.What do you think happens when we have too few calories ,bút use too many calories? Làm nhanh hộ mình nhé.

1.Because we need more effort and energy to do these activities.

2.Gardening.

3.About 660 calories.

4.We will be tired and weak.