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3049 views	0 answers	What causes color of gems? updated 7 years ago by attemptnwin
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2657 views	0 answers	How do scientists find out the age of old organic objects? updated 7 years ago by attemptnwin
3831 views	0 answers	Why don’t fish drown? How do they manage to breath? updated 10 years ago by attemptnwin
9185 views	0 answers	What is the difference between spores and seeds? updated 7 years ago by attemptnwin