Why are gamma rays not affected by a magnet as they pass over It? A. Gamma rays do not
have enough mass to be affected.
B. Gamma rays do not have the right electrical to be affected.
C. Gamma rays are composed of only energy.
D. Gamma rays move too fast for anything to affect their pathway.

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.