(Question)
Given the fact that: More people also means more clearing of land for agriculture and development. Answer the question: A city will grow larger when the number of people who are there grows or shrinks?
(Answer)
grows

(Question)
Given the fact that: As the population increases, the food supply, or the supply of another necessary resource, may decrease. Answer the question: A increase or decrease in the population cold lead to less food availability?
(Answer)
increase

(Question)
Given the fact that: The closer together the particles are, the greater the amplitude of the wave. Answer the question: If the particles move apart, the amplitude of the wave should increase or decrease?
(Answer)
decrease