When a person exercises regularly, and is fit, the heart undergoes certain long-term adaptations. The heart muscle gets stronger, and expels more blood with each contraction. Compared to an obese person who has never exercised, would an Olympic sprinter in perfect condition be more likely to have a heart that can, with each beat, move more blood or less blood??
more blood

In electromagnetic waves with higher frequencies, photons have more energy. If Jim decreases the frequency of the radio waves on his shortwave radio, will the radio use less energy? or more or?
less energy?

Q: The sooner cancer is treated, the greater the chances of a cure. Don is getting screened for cancer. Because his cancer is caught late, after it had metastasized, the chance of a cure is greater or lesser?
A: lesser

Question: The sooner cancer is treated, the greater the chances of a cure. Compared to a person who chooses to start right away to undergo cancer treatments after being diagnosed, would a person with the same cancer who undergoes treatment a long time after learning of their diagnosis be less likely to be cured? or more likely to be cured?
Answer: less likely to be cured?

*Question*
As the distance between the objects increases, the force of gravitational attraction decreases. Two planets are drawn to each other in space, however they begin to drift apart over time. As the years press on, the planets will have a gravitation attraction between them that is greater or lesser?
**Answer**
lesser

(Q).
Air in the troposphere is warmer closer to Earths surface. If Milo is flying through the air and he moves closer to the Earth, what happens to the temperature of the air increases or decreases?
(A).
increases