Question: 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 experiences less soil erosion?
Answer: The Valley

Question: Two college buddies have known each other for 20 years. Tim was HIV positive while John was not and he didn't have a problem with it. Both friends are 40 years old. Which friend cannot expect to reach an average human life span?
Answer: Tim

Question: Dean and Paul both went to volunteered in Africa. They had a blood test when they came back. Paul had been infected with the HIV virus while Dean was healthy and clean. Which friend has a virus that is transmitted by contact with infected blood?
Answer:
Paul