Ques: Given the fact that:  More recently, the death rate has fallen because of the availability of more food and medical advances.  Answer the question:   When the villagers are living longer, the food source is likely great or small?
Ans: great

Ques: Given the fact that:  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.  Answer the question:   If Ben exercises daily, and Anna exercises only weekly, who has a stronger heart Ben or Anna?
Ans: Ben

Ques: Given the fact that:  The farther the object is stretched or compressed, the greater its elastic potential energy is.  Answer the question:   Letting a stretched a rubber band become looser decreases or increases its elastic potential energy?
Ans: decreases

Ques: Given the fact that:  Smoking reduces the amount of oxygen available for diffusion at the lungs, so less oxygen gets absorbed and blood is oxygenated to a lesser degree.  Answer the question:   Will is smoking a cigarette. This causes more or less oxygen to be available for diffusion in his lungs, so less oxygen will be absorbed into his blood?
Ans:
less