What is the name of the process where gas is directly converted to solids called?
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West Bengal approved the construction of states 1st Deep Sea Port at
What do you mean by 'Density of Population'?
The tree species most commonly used in social forestry is
What is the name of ecologically clean rocket developed by Russia based space research center?
Two chords AB and PQ of a circle intersect at D inside a circle. If AD = 4 cm, DB = 6 cm, QD = 3 cm, the length of PQ is equal to
The simplification value of 735+2-552+7+227+5 is
Which nation won the highest number of medals at 2016 Rio Olympics?