A young scientist tells you that she has a metamorphic rock sample that was made from clay sediments. She explains that it was probably created in high temperatures underground that were right around 800 degrees Celsius. She is sure though that the rock was created twenty kilometers (20 km) underground as it came from a known sampling from the USGS. She thinks the sample is gneiss . You look at her with a questioning grin and then proceed to tell her that there is a problem.

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

What is an animal that lives by preying on other animals

What do science, technology, and disease have to do with each other?