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.
The moons stay in orbit around Jupiter by the force of gravity.
gravity
Our moons gravity.
Yes, approximately.
Gravity keeps them in orbit around Jupiter.
No. Only the larger moons are spherical. Smaller moons do not have strong enough gravity to make themselves round and so are irregular in shape. Perfect example are Phobos and Deimos, the two tiny moons that orbit Mars.
because their gravity is so strong that the moons are pulled in.
Moons orbit Jupiter because of the combined influence of gravity. and the forward motion of the moons. If there were gravity along, the moons would fall into Jupiter. If there were only forward motion, the moos would fly off into space.