___________ is obtained by evaporation of sea.
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The Great Smog of 1952 was a severe air-pollution event which affected _______.
Which country become the first to approve the sales of Lab-grown chicken meat by US based start-up "Just Eat"?
The force of friction between two surfaces will increase if:
By which process the Chinese Scientists have cloned two identical long - tailed macaques?
A deep crack in a glacier is called
Study of earth is known as
What is the name of ecologically clean rocket developed by Russia based space research center?