The short answer is, 'It shouldn't'.
The battery should hold it's charge when not being used. It has no relation to what kind of ground it is sitting on.
If the charge deminishes, then something is using it. Car alarms, clocks, interior lights, are all culprits for using power when the system is presumably switched off.
An old, tired battery will also loose it's charge when not being used.
Static charge is another matter. The sort that gives you a shock as you slide out of the car.
Although the tyres are good insulators, there will always be a slow leakage of accummulated charge across the rubber.
If the electrical charge is in a rod, for example, just ground it. Make it touch the ground, or something that is touching the ground.
None, all atoms in their ground state regardless of element have no electrical charge.
This atom hasn't an electrical charge.
No. When a bolt of lighting strikes the ground, the electrical charge dissipates to ground very quickly. The lightning may cause fires or destroy trees or steeples, but the residual charge is gone within seconds.
People who have been struck by Lightning does not carry a residual charge. Lightning goes straight through the body and into the ground. There would be no electrical charge left and they would be safe to touch.
When you build up electrical charges on the surface of an object you get static. Static can result in a small shock if the electrical charge is given a direct conductive contact to the ground.
you could also check the ground on the starter sometimes they will get really greasy and hence no ground-no charge or try the voltage regulator or the solenoid
BEcause the electricity actually runs from The Negative side of the battery to the Positive. Electrical charge is a "Negative" charge. But the layman thought that sounded wrong and eventually even the english gave in and went to Negative ground systems.
Ground
Green is the usual colour that represents ground in electrical equipment.
Good question. Electricity is about electrical charges. Alas, nature prefers electrical neutrality -- no net charge. An electrical charge is in an unstable state; it will seek the easiest path to be neutralized (to be in a stable state via a most energy-efficient manner); easy here means the lowest resistance to the flow. If water is dropped on a hilltop, it will seek a more stable state, the lower ground, by the quickest means (straight downhills), not meandering like a road for cars. Same for an electrical charge.
As the aircraft travels at high speeds through the air, friction between the air and the body of the aircraft create charge. This is why aircraft's have special rubber wheels which contain a conducting material, to release the charge into the ground when they land.