Can someone i have science homework i need it done

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

Arecipe calls for 1.2 cups of oil. how many liters of oil is this?

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.