The elements of the earth are in a constant process of being
A. Recycled
B. Disposed of
C. Used up
D. Consumed

After cloud droplets form, what must happen to them for precipitation to occur?

Drug abuse will not lead to physical and psychological dependence. true or false ?

The gulf stream is a warm water current that flows away from the equator to northern europe. witch of these does it cause. a. crashes of warm and cool water in the ocean b. colder climates near the equator c. large waves on the cost of europe d. warm climates in northern europe