Help on this one too please?, thanks :)

Why does a red shoe appear red in daylight

Which formula can be used to calculate the molar mass of hydrogen peroxide

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.