What was USA's rank in 2016 Human Development Index published by the United Nations Development Programme?
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97% of the total debt of all state power distribution companies has been covered till June 2017 under the ‘UDAY’ scheme. What does ‘D’ standfor in ‘UDAY’?
Charcoal can be made at home by burning
During the past century, the temperature of Earth has increased by ________.
What was the shape of the galaxy named A1689 B11 that existed 11 billion years ago?
Instrument for measuring low temperatures is called
What is the unit of calorific value?
Warm air is ______.