While on vacation, Shamma rides in a hot-air balloon. To make the balloon rise, the pilot turns on a flame to warm the air inside the balloon.

How do the air particles act?

How many moles of air are there in a human lung with a volume of 2.4 l at stp? explain your answer

Which of the following natural processes is most likely to support the formation of an underwater sinkhole? a pollution buildup from deposited minerals b limestone cave collapsing due to changes in sea level c erosion of large amounts of sand moved by ocean waves d oxidation of rock formed by chemical weathering

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.