In erosion, the higher the elevation, the farther the stream is from where it will reach base level and the more cutting it has to do.  Having read the above passage, choose the right answer to the following question (choices are increases or decreases ):   If Milo is observing a stream at a low elevation and he follows the stream up to a higher elevation, what happens to the amount of cutting the stream has to do when eroding the stream bed beneath it increases or decreases?
increases

The more cylinders a car engine has, the more powerful its engine can be.  Having read the above passage, choose the right answer to the following question (choices are increased or decreased ):   Mona is designing a car in a factory. If she decides to add more cylinders to the car's engine, what happens to the power that engine can output increased or decreased?
increased

The more curved the surface of a lens is, the more it refracts light.  Having read the above passage, choose the right answer to the following question (choices are very or not ):   Jeff built a lens with the highest refraction possible. The lens is likely very or not curved?
very