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: Mike is watching how particles of reactants function, and sees that they are very far apart. Considering that the concentration of them is very low, the chance of them colliding together is 
 Answer: low

Ex Output:
At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react.


Ex Input:
Question: Ferb and Honey are walking towards each other. What is true about the force of gravity between them as the distance between them decreases? 
 Answer: it increases

Ex Output:
Objects that are closer together have a stronger force of gravity between them.


Ex Input:
Question: If Mona moves her index finger closer to her eyes, what happens to the amount of position change her eye experiences? 
 Answer: increase

Ex Output:

The closer your finger is to your eyes, the greater the position changes because of parallax.