Everything has gravity, the bigger it is the more it has. Moons DO have gravity, but it might be less than Earth's.
There is gravity. There is gravity on all planets, moons, and stars.
No. Gravity from any object varies depending on its size and mass.
by gravity
No, that's not true. All planets, moons, and stars have gravity. Actually all objects have gravity, it's just not very strong for small objects.
gravity
The moons stay in orbit around Jupiter by the force of gravity.
Our moons gravity.
Yes, approximately.
Gravity keeps them in orbit around Jupiter.
because their gravity is so strong that the moons are pulled in.
the moons gravity
the moons gravity.