the movement of blood from the legs toward the heart is hindered by gravity. the effect of gravity is counteracted by

climate change and pollution

bacteria could be both, harmful and to us. harmful bacteria could make us sick and probably even by getting the chances of getting a disease, but good bacteria fight it off with your immune system. there is always bacteria everywhere we go. we need to make sure to wash our hands after using the restroom, before eating, after eating, after petting an animal too. so you see, bacteria is everywhere and is harmful or . i hope this . : ) : ) : )

the answer u all are looking for is 4000000000000000000000 million years.

answer; projective;