No, it does not depend upon density, it is due to liquid nature of water which has a tendency to flow due to gravitational force.
If you are talking about a hot water tank then the answer is no. If it is leaking from a fitting, it just needs to be tightened. If you can not tell where the leak is coming from, the water leak is the first sign that the tank is going to need replacing in the not to distance future.
Natural gas will usually fall toward the floor. Natural gas is heavier than air. If there are winds or breezes, it will dissipate or rise.
you have an air leak somewhere. or the water level isn't correct
If it is a "rotten egg" sulfur smell it is bacteria. Flush the hot water heater and turn up the heat to between 130 and 140 degrees F.
the cell usually dies because the chemicals destory the cell.
They do not leak due to the water proof seal that is at the bottom of the door. Now water can still leak only though if people actively splash water frhom inside the tub.
Because there is a leak in the pipe of the water main.
Because the pressure of the water is a lot stronger at the bottom of the water and a lot less strong closer to the surface of the water
Probably because there's a pipe or tube that is located at the bottom of the car that transports the oil or a leak inside just goes out of a crevasse at the bottom.
This leak indicates a seal failure and requires replacement of the water pump .
Because they are defective
the sun makes the water expand. then as the water expands it leaks out of the bottom.
yes it will. thru a hole in bottom usually.
There is a small hole in the bottom that is designed to leak when the water pump bearing is goin out
The "weep" hole in the bottom of the water pump.
when i turn my truck off water leaks from the bottom all the time
There are a few things that can cause a coolant leak but in your case it is probably the water pump. When a water pump starts to go bad it will leak coolant from the bottom.