(Question)
The more extreme the amount of metamorphism, the more difficult it is to tell what the original rock was.  Having read the above passage, choose the right answer to the following question (choices are Increased or Decreased ):   John was looking at the rocks, and noticed something. The more the metamorphism in the rock, the difficulty to tell what it was Increased or Decreased?
(Answer)
Increased


(Question)
On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.  Having read the above passage, choose the right answer to the following question (choices are hot or cold ):   Karen is feeling very warm, and starts to sweat. Her blood flow is increased, likely because the day is hot or cold?
(Answer)
hot


(Question)
Inhaling, or breathing in, increases the size of the chest, which decreases air pressure inside the lungs.  Having read the above passage, choose the right answer to the following question (choices are in or out ):   Rich breathed out. When he breathes in or out his chest seems larger?
(Answer)
out