Bases have pH values above 7. The higher the pH value, the more strongly basic the substance.  Will measures water at a pH of 7, while a bleach solution measures at 12. Which substance is more basic water or bleach?
bleach

The higher the crests of a wave are, the greater the amplitude.  A wave that increases in height will increase or decrease in amplitude?
increase

The more extreme the amount of metamorphism, the more difficult it is to tell what the original rock was.  If pressure has exerted less force on a rock and decreased it's metamorphism, would it be easier to determine what the original rock was or harder to determine what the original rock was??

easier to determine what the original rock was