Question: The higher up a food chain that humans eat, the greater the levels of toxic metals they take in.  If Jim eats animals that are higher on the food chain, the amount of toxic metals that enter his body are greater or smaller?
Answer: greater

Question: Exhaling, or breathing out, decreases the size of the chest, which increases air pressure inside the lungs.  As a balloon deflates there is more or less air pressure forcing air out?
Answer: more

Question: The greater the objects mass, the greater the force of gravitational attraction.  Will weighed himself on a scale. He weighs less than last year. His force of gravitational attraction increased or decreased?
Answer:
decreased