This is the last question on my test and i dont know it? answer quick!

which of these is an environmental change that occurs rapidly?

a) regrowth after flooding

b) human population growth

c) hurricane

d) ecosystem changing from a meadow to pond

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly