Who was the first Indian astronaut to travel in space?
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Which of the following metals is stored in kerosene oil?
Which among the following is false about Earth?
Charcoal can be made at home by burning
The longest day of the year in the Northern Hemisphere occur on _____.
Marble is a metamorphic rock of _______.
The arrangement of leaves on an axis or stem is called
Which colour is formed when Blue and Green are mixed?