Question

in our world how many planet are there​

Answer 1

Explanation:

The eight planets are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

Answer 2

Answer:

2006 IAU definition of planet

A "planet" is a celestial body that(a)is in orbit around the Sun,(c)has cleared the neighbourhood around its orbit.The eight planets are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.