I say true. People would then have to look at the same things over and over agin with nothing new.
Birmingham's nickname was "Bombingham" because there had been about 60 unsolved bombings and no one arrested for them.
1. geologic time
2. stratum
You could have just googled these...
Explanation:
minerals- is a naturally occuring inorganic solid with a chemical composition and crystalline structure.
rocks- is aggregate of more minerals some rocks are predominantly composed minerals.