Emergency
which items are minerals or contain minerals? check all that apply.
lawn fertilizer
topsoil
a diamond necklace
a copper electrical wire
a cellular phone

Why are small quantities of chlorofluorocarbons so harmful to the ozone layer? a. the chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced. b. the chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production c. free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone. d. chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone select the best answer from the choices provided

Explain nonnuclear inheritance. ~ ap biology

Melting glaciers is a serious threat to the environment what is the possible consequence of melting glaciers on polar bears?