An isotope undergoes radioactive decay. the new isotope that forms has an atomic number that is 2 less than the original isotope's. what kind of decay has occurred, and how do you know?

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.