In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

Question: A city will grow larger when the number of people who are there 
 Answer: grows
More people also means more clearing of land for agriculture and development.

Question: An increase in birth rates indicates a/an _____ in the food supply. 
 Answer: increase
Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.

Question: If the Moon moves away from the Earth, what happens to the tidal pull of that astral body? 
 Answer: it decreases

The Moon has a greater effect on the tides because, although it is much smaller than the Sun, it is much closer.