In the following question, out of the four alternatives, select the alternative which is the best substitute of the words/sentence.
An urgent need or demand
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Which planet is known as red planet?
____ project is an ambitious Union Government Project which integrates the efforts to clean and protect the Ganga river in a comprehensive manner.
Which university has been ranked at the top in the Swachhta Ranking 2017 released by the Union Government?
Light travels fastest in
Sextant is an instrument used in which of the following ?
A Sonar of a ship sends sounds waves of speed 1500 m/s. These waves are reflected back by the ocean floor in 5 seconds. Find the depth (in m) of the ocean floor.
The space shuttle which took Sunita Williams beyond earth was