Can you name the closest star to Earth?
The molten rock after the volcanic eruption is called ___________.
The part of the eye that controls the amount of light is called _________.
This is the largest continent.
The tallest mountain in the world is ___________
The hardest natural substance is called a ___________.
A ____ has a head and tail but doesn't have a body.
This thing comes down but never goes up.
The Red planet of the Solar system is _______________.
It has many keys, but can't even open a single door?
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