Question: As humidity increases, the water potential gradient across the inside and outside the leaf become more equal, and so the rate of transpiration decreases. Ian wants the transpiration rate to rise in his leaves, so he will do what with the humidity levels decrease them or increase them?
Answer: decrease them

Question: Longer wires have more resistance than shorter wires. As cables get shorter they need to get thinner because short cables have less resistance or more resistance?
Answer: less resistance

Question: The more extreme the amount of metamorphism, the more difficult it is to tell what the original rock was. John was looking at the rocks, and noticed something. The less the metamorphism in the rock, the difficulty to tell what it was Increased or Decreased?
Answer:
Decreased