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.

Q: Question: Compared to a ripple in a pond caused by a drop of rain, would a wave in the ocean have 
 Answer: more distantly spaced particles in its rarefactions

A: Places where particles of a medium crowd closer together are called compressions, and places where the particles spread farther apart are called rarefactions. The more energy the wave has, the closer together the particles are in compressions and the farther apart they are in rarefactions.
****
Q: Question: If a device were to become less efficient, it would produce _____ usable energy. 
 Answer: less

A: The more efficient a device is, the greater the percentage of usable energy it produces.
****
Q: Question: Annette took temperature readings of two different stars far off in the Milky Way galaxy. Star B produced half the energy of Star A, so _____ was seen to have the higher temperature. 
 Answer: Star A

A:
Bigger stars produce more energy, so their surfaces are hotter.
****