Problem: Bay city practiced organic farming and used almost no fertilizers. Gulf city practiced conventional farming for it inhabitants, and used vast quantities of fertilizers. Which city caused the entry of less agriculture fertilizer into the ocean?

A: Bay

Problem: A biologist was in Australia making observations about the local species when he identified two distinct groups of butterflies. He found that one group of butterflies, group A, blended in with the dark oak trees that were common in the area. Butterflies in the other group, group B, however did not blend in as well and could easily be spotted by predators whenever they landed on the oak trees. Which group of butterflies will reproduce more often?

A: group A

Problem: John wanted to charge his electronic gadgets remotely. To that end, he first conducted two experiments, case A and case B. In case A he used conduction, and in case B he used induction. In both cases he used same two objects. Finally, John tried to charge his phone remotely. He called this test as case C. In which case the objects would be closer to each other, case A or case B?

A: case A

Problem: Pat and Tammy are mother and sister. They like to take long walks together. Pat is 60, while Tammy is 32 years-old. Which person shows more wrinkles?

A:
Pat