Two meteorologists study Earth's climate. Jerry studies alpine climate, while James studies tropical climates. They both made great progress. Which person observed that the climate becomes colder at high elevations?
Ans: Jerry

Mark was visiting southern Africa as an exchange student. He was amazed by the beauty of Namib Desert, which is located mostly in Namibia. He kind of enjoyed the hot surface of the desert. Next to Namib desert is the grasslands of Botswana. He noticed that the surface temperature was much lower there. Which place would have lower surface air pressure, Namibia or Botswana?
Ans: Namibia

Michael and Thomas are brothers whose careers have taken them to different cities. Michael lives in Beijing, where the levels of air pollution are fairly high due to the extensive manufacturing industry. Thomas, on the other hand, lives in Seattle, which has low levels of air pollution thanks to government initiatives and culture attitudes in the region. Who has a higher risk of developing lung cancer?
Ans: Michael

Hannah and Joe are two colleagues. They both study horticulture. They've been studying ants lately for their entomology class. Hannah studied ants that farm aphids, while Joe studied ants that farm fungus. Which student learned more about ants that store the aphid eggs?
Ans: Hannah