(Q).
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 Olympic sprinter in perfect condition, would an obese person who has never exercised be more likely to have a heart that can, with each beat, move more blood or less blood??
(A).
less blood?


(Q).
An object with greater mass or greater velocity has more kinetic energy.  An object with little kinetic energy is probably small or large?
(A).
small


(Q).
Water also gets colder as you go deeper.  Anna swims across the surface of a lake and later she plunges several feet below the surface to explore. At which depth will the temperature of the water be colder surface of water or several feet deep in water??
(A).
several feet deep in water?