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1. 
Which is the biggest star in the Solar System?
A.
The Moon
B.
Venus
C.
Casiopea
D.
The Sun
2. 
Which planet is closest to the Sun?
3. 
It is the only natural satellite of the Earth.
4. 
The imaginary line that passes through the North Pole till the South pole is called...
A.
Axis
B.
Sun
C.
Revolution
D.
Orbit
5. 
The Earth takes 24 hours to complete one...
A.
rotation
B.
traslation
C.
revolution
D.
orbits