Question

which answer is closest to the time it takes earth to complete a rotation?
a 21 hrs
b 23 hrs
c 24 hrs
d 20 hrs

Explanation:

The Earth's rotation period (sidereal day) is about 23 hours and 56 minutes, which is closest to 24 hours among the given options. Option c (24 hrs) is the closest approximation to the time Earth takes to complete a rotation (considering the solar day approximation which is commonly referred to as a day, ~24 hours).

Answer:

c. 24 hrs