The Earth orbits a much larger Sun. Use the relationship between size (mass) and gravity to explain why Earth orbits the Sun and not the Sun around the Earth.
The natural no between 2 to 15 is 2,3,4,5,6,7,8,9,10,11 and 12. prime numbers among these are 2,3,5,7 and 11. therefore,out of 11 number, 5 are prime number.
