The image shows a group of fish.
The type of social behavior shown in the image is called

the answer is a. now keep my answer here.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.

im not intirely sure but i think the anwser is d relative humidity