What is Avagrados Number?

Which statement describes the phase change that occurs when dry ice is placed in an open container at room temperature?

The biosphere of the earth is made up of what compound? organic or inorganic?

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.