One of the primary functions of this tissue type is to store energy.

Adipose tissue

Explanation:

Adipose tissue is an example of loose connective tissue. The cells of the adipose tissues are filled with droplets of fat. When there is a need for energy and glucose is not available as an energy source, the stored fats enter the catabolic pathway to produce energy in the form of ATP. The proportion of stored fat in adipose tissues is as high as 80%.  

Hence, adipose tissues are the connective tissues that serve to store energy in the form of fat droplets.  

cuz some people don't have enough food. that's why we need more ppl to donate food to the hungry.