Why is the radius of the sphere of gravitational action of Neptune the largest of all the giant planets, although its mass is the smallest?

Explanation: The planet’s sphere of action is limited by the distance at which the planet’s gravity exceeds the sun’s gravity.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.