Dark soil is fertile. b Plants may reach the wilting point if there is continued water deficit in the soil-water budget. c Through illuviation, fine soil particles in soil are transported downward the soil layers. d None of the above is true.

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

This is one of the five kingdoms in the older biological succession. organisms in this kingdom are prokaryotic

Which term specifically refers to an area of the body between a medial and lateral structure