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 decrease in his leaves, so he will do what with the humidity levels decrease them or increase them?
increase them

In refraction of light, the greater the change in speed, the more light bends. When light travels slower, the light refracting bends more or less.?
less.

If you are standing on the shore and a ship is going out to sea, the ship gets smaller as it moves further away from you. As he was standing on the beach and watching the boat, it began to drift away. As the distance shrunk between him and the boat, the ship got Smaller or Larger?
Larger

Water becomes more dense when it is colder and when it has more salt. What happens to water when it absorbs salt lower density or Higher Density?
Higher Density