Absolutely, many were in my theatre
Pretty sure the answer is D
<span>Platelet is a term that is not used to refer to white blood cells. Platelets are the smallest of all blood cells, and make up a very small fraction of blood volume. The function of platelets is to prevent bleeding, whereas the function of white blood cells is to fight off infection and increase immunity to disease.</span>
Probaly mass production factories like air pollution or mining because that also pollutes and destroys the environment
That something is wrong with them and they are not doing the best since their oxygen level is low
