Sally stretches a rubber band between her two fingers, as shown in the image.

Her friend, Susie, plucks the rubber band and it produces sound. Why?
A) Sound is produced because rubber band is stretched.
B) Sound is produced by the vibrations of the rubber band.
C) Sound is produced due to the length of the rubber band.
D) Sound is produced due to the change in the mass of the materials.

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

Which is a function performed by stem cells in the skin a. replacing lost skin cells b. making cells for the intestines c. growing new organs d. differentiating into brain cells plz apex

What is the starting point in replication called