instruction:
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:
Question: Reid notices no change in the weather and temperature from 100 years ago. This likely was caused by _____ greenhouse gas levels. 
 Answer: decreased
answer:
As greenhouse gases increase, changes will be more extreme.


question:
Question: Noah has noticed that the galaxies are contracting. This will make the galaxies 
 Answer: nearer
answer:
As the Universe expands, galaxies move further and further apart.


question:
Question: When the glass shattered the volume decreased but the surface area 
 Answer: increased
answer:

As rock breaks into smaller pieces, the surface area of the pieces increases.