write down the time that your vertical lines cross the time scale at the bottom then subtract to find the time difference

life would be meaningless without memes

the answer is trees if i'm not mistaken

i believe it would cause an increase of percipitation, though i could be wrong. so i would say b is the answer.

answer; the tunica intima also called tunica interna, consists of elastic fibers,connective tissue and smooth muscle cells;