They all do. Every object in the universe has gravity.
Gravity exists on all planets, though the force differs depending on the mass of the planet.
All planets have gravity, not just Earth.
No. The gravitational pull at the surface of a planet depends on that planet's mass and radius. Jupiter has the strongest gravity of any planet in the solar system: 2.53 times the surface gravity on Earth. Mercury has the weakest surface gravity at just 37% the gravity on Earth.
I live on Earth, as do all other humans. Where are you from?
The gravity of the earth is pulling it into orbit.
To find your weight on other planets, you would multiply your weight on Earth by the planet's surface gravity relative to Earth's surface gravity. For example, your weight on Mars would be your weight on Earth multiplied by 0.38, as Mars' surface gravity is 0.38 times that of Earth.
No, except mars
Yes Mars has oxygen.
The force of gravity pulls things towards Earth. Gravity is a fundamental force in the universe that causes objects with mass to be attracted to each other. On Earth, gravity keeps us anchored to the ground and influences the motion of everything on the planet.
Gravity holds the planet together as a 'ball' and you on it. It also makes things fall. We can measure this so we know the force of gravity on earth and can calculate it for other planets and stars.
The measure of the pull of gravity on an object is its weight, which is determined by the mass of the object and the acceleration due to gravity. The acceleration due to gravity varies on different planets, so the weight of an object will change if it is on a planet other than Earth.
yes and no, planet earth is the only earth with gravity because there is only one earth, however planet earth is not the only planet with gravity or even the only object with gravity. every single planet and every star and even every comet or asteroid has gravity but its not just objects in space; everything is made of matter and all matter attracts other matter which is what causes gravity so the chair your sitting on, the computer in front of you, and even you have a small amount of gravity.