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83722 views	0 answers	How does a periscope work and what are its uses? updated 7 years ago by attemptnwin
61357 views	0 answers	What is the difference between organic and inorganic substances? updated 7 years ago by attemptnwin
50496 views	0 answers	Why does solid Iodine crystals on heating turn into vapor instead of melting? updated 7 years ago by attemptnwin
41789 views	0 answers	How does a rain gauge work? updated 7 years ago by attemptnwin
37100 views	0 answers	Can substances burn without flame? updated 7 years ago by attemptnwin