science
Grade-3
Easy
Question
What causes day and night?
- The sun spins over the Earth
- The sun revolves around the Earth
- The Earth orbits the sun
- The Earth rotates or spins every 24 hours
Hint:
Day and night is a 24 hour phenomena.
The correct answer is: The Earth rotates or spins every 24 hours
- Earth rotates around its axis and it takes about 24 hours to complete one rotation of the axis.
- This rotation determines the day and night on the earth.
- When the earth faces towards the sun and gets light, it is considered day and when the earth faces away from the sun and does not get sunlight, it is considered night.
- One day and one night happen every 24 hours.
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