This is true because some people may be going through rough times and when they aren't they probably won't feel the same way as they do when they go through tough times.
The answer is spreadsheet. I just did this lesson and I got all of the answers right so I know it's correct.
ANSWER:
Minerals can form deep inside earth's crust by the crystallization of melted materials. There are two ways on how minerals are formed: crystallization of melted materials and the crystallization of materials dissolved in water.
Hope this helps!