Which best explains why the electromagnetic force can be used to demonstrate how like charges behave when they come together? Electromagnetism has a very small range.
Electromagnetism has an infinite range.
Electromagnetism can attract.
Electromagnetism can repel.

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

You see a white marker with an orange circle and black lettering. what does this marker tell you

Cells control gene expression at which steps