It's so broad, it includes physics, chemistry and biology
You have the crust then you have mantle thenyou have the outer core then you have the inner core
Answer:
It is biodiversity, I think. Not sure, though.
Are you attending laurel springs school? if so I GO THERE !!!!! I need the same help :) I know one of them was pollution
Answer:
Due to continuous global warming, the oceans tend to gain more heat and hence the temperature rises. In the current century, the heated conditions of the oceans can be threatful for the human population. Also, the increase in the sea levels will have serious consequences on the health of mankind and their quality of life.
