Background Paragraph: Alpine climate is the average weather (climate) for the alpine tundra. The climate becomes colder at high elevations—this characteristic is described by the lapse rate of air: air tends to get colder as it rises, since it expands. The dry adiabatic lapse rate is 10 °C per km (5.5 °F per 1000 ft) of elevation or altitude. Therefore, moving up 100 metres (330 ft) on a mountain is roughly equivalent to moving 80 kilometers (45 miles or 0.75° of latitude) towards the pole. This relationship is only approximate, however, since local factors such as proximity to oceans can drastically modify the climate. 
Story: Two meteorologists study Earth's climate. Jerry studies alpine climate, while James studies tropical climates. They both made great progress.
Which person didn't observe that the climate becomes colder at high elevations? Which person learned less about air expansion as it rises? Which person learned less about the dry adiabatic lapse rate? Which person learned less about the lapse rate of air? Which person learned more about air expansion as it rises? Which person learned more about the dry adiabatic lapse rate? Which person learned more about the lapse rate of air? Which person observed that the climate becomes colder at high elevations? Which person studied less about alpine tundras? Which person studied more about alpine tundras?