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.

Ex Input:
Question: If the Earth's orbit moves farther away from the Sun, what happens to the gravitational force between the two planets? 
 Answer: it decreases

Ex Output:
This is because the gravitational force of attraction between the Earth and Sun is stronger when the Earth is closer to the Sun.


Ex Input:
Question: A population of squirrels in a local forest had less food available to them this spring than they did last spring. During which spring will more squirrels leave the area to live somewhere else? 
 Answer: this spring

Ex Output:
Low food supply or a lack of space can lower birth rates, increase death rates, or lead to emigration.


Ex Input:
Question: If Jim's pupil gets smaller, what will happen to the amount of light that enters his eye? 
 Answer: less light will enter

Ex Output:

The pupil automatically gets bigger or smaller to let more or less light in as needed.