Experts in study and predict the changes to the human population. One pattern of change to the population of a country is called the , and involves drastic changes to both birthrate and death rate.

. ph changes the ability of them he enzyme to dissolve in water.

sorry to break it to ya but no one can answer your question it's just

jk but i am serious about the part that most people cant answer it beacuse you did not mention the section you are talking about. but it would if you added some detail and were a bit more specific.