Ques: When the heart expels more blood with each stroke, the heart has to beat less often in order to maintain the same volume of blood flow.  If Milo gets excited and his heart starts pumping more blood with each stroke, what happens to his heart rate increases or decreases?
Ans: decreases

Ques: The more efficient a device is, the greater the percentage of usable energy it produces.  A very inefficient pair of solar panels will produce little energy or a lot of energy?
Ans: little energy

Ques: The main law is the law of superposition. This law states that deeper rock layers are older than layers closer to the surface.  Bryan was tasked with categorizing various fossils that the archeology team dug up. He knew they found some in rock layers near the surface and others in layers much farther below the ground. Which should he categorize as the older ones near surface fossils or farther down fossils?
Ans: farther down fossils

Ques: The more current, the stronger the electromagnet.  Milo is playing with his electromagnet and he decides to decrease the current supplied to it. What will happen to the strength of the electromagnet increase or decrease?
Ans:
decrease