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.

Question: Adam had a large larynx as a child, but after his larynx shrunk for some reason, his voice got 
 Answer: higher
The voice becomes deeper as the larynx in the throat grows larger.

Question: When a device become less efficient, its production of usable energy will go 
 Answer: down
The more efficient a device is, the greater the percentage of usable energy it produces.

Question: Joan is trying to get rocks to melt by using depth to get lower pressure. The lesser the pressure that Joan applies to the rock, the melting temperature will be 
 Answer: lower

Pressure: Pressure increases with depth, but increased pressure raises the melting temperature, so melting of rock is less likely to occur at higher pressures.