Everything needs gravity, everything is affected by it :P
A water table is formed by water taking the path of least resistance, deep into the ground. Gravity is the force that makes water take that path.
artesian well, for sure
No. Wind & gravity can do it alone.
Water flowing downhill does not require energy, only the force of gravity.
Water, which is in rivers and bays, looks for the lowest point it can get to. That is why when you spill water it runs off the table. That and gravity. The water in rivers flows to bays for the same reason water falls from the table. Gravity is pushing it down and the water is looking for the lowest point.
Gravity
The force of gravity on a 24 kg table on earth = 24 x 9.8 = 235.2N
Yes. For a start, gravity pulls it down. Also, the table pushes up on the book, thus canceling the force of gravity.
Gravity keeps the puck near the table.
Capillary Fringe
Due to gravity, water will always flow to the lowest level. Therefore, as part of the water cycle, rain will flow downhill and eventually reach the sea. The rain will also top-up the ground water-table, and fill lakes and reservoirs.
There is gravity everywhere.