When heated, metallic chlorates decompose into A. metallic oxides and chlorine. B. metallic chlorides and oxygen. C. a metal and a compound of chlorine and oxygen. D. a metal, chlorine, and oxygen.

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.