Q: This year thee comets would be of interest, comet A, comet B, and comet C. Comet A and comet B would enter the inner solar system. But comet C would not enter the inner solar system. Moreover, comet A is categorized as a bright comet, but comet B is categorized as a faint comet. Which comet's dust would reflect sunlight, comet A or comet C?
A: comet A

Q: The Gorge saw some negative effects due to deforestation. The Valley has a more fertile soil, it's not overgrazed, and the trees and bushes are abundant, and the productivity has increased several fold over the past decade. Biodiversity in the Valley is varied, and the soils are nutritious and retain more water, nitrogen and carbon. Which area has more endangered species?
A: The Gorge

Q: Harry and Kim studied ancient humans. Kim studied a 15000 year-old settlement, before humans invented agriculture, while Harry studied a 5000 year-old village. Which student studied about a village that had a higher birth rate?
A: Harry

Q: PepsiCo has been supplying GMO potato seeds to farmers. Eventually, they buy the potatoes for their chips. On the other hand, Kettle Foods supplied non-GMO potato seeds to their farmers. They wanted to see how customers react to their non-GMO products, mostly chips. Would Kettle Foods potatoes be less or more iron deficient than PepsiCo'?
A:
less