Two villages were focused mostly on mining operation. Brown village extracted fossil fuels such as coal from their mountains, while Yellow village was mostly focused on extracting gold the old fashioned way. Which village has less of an impact on greenhouse gas levels?
Ans: Yellow

Two earth-like planets orbited the same star. The inhabitants of Earth I released greenhouse gases into the atmosphere. Earth II ,however, was much more conscious about the environment and protected it from anthropogenic changes. Which planet caused almost no climate change?
Ans: Earth II

Two chickens are living on the same farm. Chicken A has just been infected with a parasite, but Chicken B does not have the parasite. Chicken A probably got it when it went swimming out in the old stagnant lake while the other chickens were sleeping. Which chicken is less likely to get sick?
Ans: Chicken B

Medication A was tested on 1000 people for 3 years and cured Disease X in 80% of those trials. However, Medication B was tested on 50 patients and cured Disease X in 90% of those trials. Was Medication A's trial more efficient or less efficient than Medication B's trial?
Ans: more efficient