What one of the following items is a producer of pollution?
a. forest
b. oceans
c. factories
d. bicycles user: how many times in the history of earth has the number of species dropped drastically?
a. 4 times
b. 3 times
c. 5 times
d. 6 times

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto