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.

Input: Consider 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

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


Input: Consider Input: Question: Don needs to get a wire for work that has the most amount of resistance. Given the choice in wire length, Don will choose one that is 
 Answer: longer

Output: The shorter the resistor, the less resistance it has.


Input: Consider Input: Question: Woody is diving at a depth of 100 feet while Gertrude is diving at a depth of 10 feet. Who is least likely to encounter 'fossil water'? 
 Answer: Gertrude


Output: Deeper aquifers typically contain older 'fossil water.'