Which among the following cannot be included among greenhouse gases?
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The per capita income in India was '20 in 1867-68, was ascertained for the first time by___________.
What is the upward force exerted by water called?
Which is the brightest star in our night sky?
Who designed the world's lightest satellite 'Kalamsat', which NASA launched and set a new world record?
Who is the first woman Fighter pilot of India at the Republic Day parade?
Blocking in experimental design is useful because it
The Magdalena River is one of the largest basins of South America. Through which country does it flow?