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1932 views	0 answers	What are asteroids and planetoids? updated 5 years ago by attemptnwin
1920 views	0 answers	Why is LASER light used in surgeries? updated 7 years ago by attemptnwin
1912 views	0 answers	What are antioxidants? updated 7 years ago by attemptnwin
1910 views	0 answers	Why do porous objects appear darker when wet? updated 7 years ago by attemptnwin
1897 views	0 answers	What is a clone? updated 7 years ago by attemptnwin