Which of the following is a nitrogen-fixing bacteria?
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Implantation is the process of
What charge is present on a neutron?
Alkali metals are assigned which group in the Modern Periodic Table?
Which Indian won the 2017 French Open Super series tournament?
If a body is whirled in a circle, then the work done on it ___.
Which of the following does NOT contribute to sparkling of diamonds?
Who designed the world's lightest satellite 'Kalamsat', which NASA launched and set a new world record?