Problem: Gary and Joe are two farmers. Joe's farm has a depleted soil, while Gary started agroforestry a few years back, and grows cover crops. Which farmer didn't increase infiltration to prevent erosion?

A: Joe

Problem: Pakistan tried to control the foreign exchange market and India didn't. By creating the foreign exchange control department, Pakistan tried to stop the devaluation of their currency. India chose to not interfere and let the exchange market regulate itself. Which country contributed less to the devaluation of their currency?

A: India

Problem: John was studying the species in Siberia. He found that the Siberian tiger is an apex predator. It had a pretty stable population during the sixteenth century. He noted that information as case A. Then with the introduction of guns the number of Siberian tigers decreased in the seventeenth century. He noted that information as case B. Which case would more likely see disruption of trophic cascades, case A or case B?

A: case B

Problem: Ted had two farmlands. Hill land had good mycorrhizal colonizationbecause ted used cover crops, while Meadow land had fewer AM fungi present in the soil. Which land had extended time for AM growth into the autumn?

A:
Hill