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3746 views	0 answers	What is periodicity with reference to the periodic table? updated 7 years ago by attemptnwin
1972 views	0 answers	Why don’t birds sitting on the power cables get electrocuted? updated 7 years ago by attemptnwin
2210 views	0 answers	Where is the heliosphere? updated 7 years ago by attemptnwin
3948 views	0 answers	How is supply of air ensured inside a submarine? updated 7 years ago by attemptnwin
17925 views	0 answers	Why is sodium kept under kerosene? updated 7 years ago by attemptnwin