(Question)
Answer the question below:   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?    Assuming that:  The more extreme the amount of metamorphism, the more difficult it is to tell what the original rock was.
(Answer)
Increased


(Question)
Answer the question below:   Karen is feeling very warm, and starts to sweat. Her blood flow is increased, likely because the day is hot or cold?    Assuming that:  On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.
(Answer)
hot


(Question)
Answer the question below:   Rich breathed out. When he breathes in or out his chest seems larger?    Assuming that:  Inhaling, or breathing in, increases the size of the chest, which decreases air pressure inside the lungs.
(Answer)
out