(Q).
Air pressure is less at higher elevations.  Marcus is climbing a mountain, and notices that it is more difficult to breathe than it was before. This is likely because Marcus is at a lower elevation or higher elevation?
(A).
higher elevation


(Q).
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?
(A).
Decreased


(Q).
Bases have pH values above 7. The higher the pH value, the more strongly basic the substance.  If Mona is filling her pool with chemicals to change the pH level of the water and she decreases the pH, what happens to the baseness of the water increase or decrease?
(A).
