Find the mass in grams of 3.10 x 1023 molecules of fluorine gas at stp

c- cold periods in earth's history during which glaciers covered much of the surface.

explanation:

i think it's c. i'm not sure but i think so.

there is none because earth is stationary and flat.

they all get energy from eating other animals, dead animals to be more precise.

hienas tends to steal pray from other animals. crows and vultures tend to eat dead animals and leftovers.

hope it ,

bioteacher101