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.

Example Input: Question: Would a star that is significantly cooler than the sun, which is outputting blue light which is higher in frequency that the yellow light of the Sun, be 
 Answer: colder?
Example Output: Shorter wavelengths (higher frequencies) correspond to higher energies and thus hotter star temperatures.

Example Input: Question: Ray was traveling in rocket leaving orbit. He keeps the empty fuel containers on board so the ship can fly 
 Answer: lower
Example Output: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.

Example Input: Question: Steve knows that the mass of Joe's car is greater than the mass of Flo's car. He concludes that _____ contains more matter than the other. 
 Answer: Joe's car
Example Output:
The greater the mass of an object, the more matter it contains.