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.
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Question: Question: Ray was traveling in rocket leaving orbit. He keeps the empty fuel containers on board so the ship can fly 
 Answer: lower

Answer: By using multiple stages, empty fuel containers could drop away. This reduced the mass of the rocket so that it could fly higher.


Question: Question: Jim's skin was noticeably darker than his friend Matt's skin. This means that _____ produces more melanin. 
 Answer: Jim

Answer: However, the melanocytes of people with darker skin produce more melanin.


Question: Question: As a diver goes deeper into the water, the water gets 
 Answer: colder.

Answer:
Water also gets colder as you go deeper.