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: Mike wants his voice to travel faster, so he will speak in a room that is 
 Answer: warmer

Answer: For a given medium such as air, sound has a slower speed at lower temperatures.


Question: Question: If something has a small surface area and is being mixed with something else it will react 
 Answer: slower

Answer: Surface Area of Reactants When a solid substance is involved in a chemical reaction, only the matter at the surface of the solid is exposed to other reactants. If a solid has more surface area, more of it is exposed and able to react.


Question: Question: A person is digging up rocks, and wants to get the oldest ones. The person will dig 
 Answer: deeper

Answer:
Older rocks are at the bottom and younger rocks are at the top.