Most of the energy that passes through a food chain is lost to the environment as
heat
matter
chemical
mechanical

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

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

What is any method of measuring the age of an object or event in years, such as using atomic half-life?