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: Simon was digging in his yard and found that the rocks that were shallower in the ground, compared to the surface rocks, were likely 
 Answer: younger

Output: Therefore, deeper rock layers must be older than layers closer to the surface.


Input: Consider Input: Question: Dell added lots of silica to her magma project. The magma will be _____ in color. 
 Answer: lighter

Output: Magmas that produce lighter colored minerals are higher in silica.


Input: Consider Input: Question: We are designing a submarine to study fish that live far below the surface of the ocean. Before we can send a human researcher down in the submarine, we have to be sure it can tolerate the pressure of the water without cracking. The tougher test will be to send our submarine down to 
 Answer: 1500 feet?


Output: A fluid exerts pressure in all directions, but the pressure is greater at greater depth.