The minimum coverage amount is $10,000. It depends on where you live and what company you use. I suggest you get good coverage though because you never know.
This depends on the state you live in. In some states it is 15/30/5. In other states it is more. You should check the DMV's website for the state you live in or check with a local insurance agent.
All states have required minimums on the different required liabilty coverages, but remember that isn't always the smartest thing.. For example in MO, the minium property damage coverage is 10k,...
Minimum coverage is the minimum amount of insurance required by law. Full coverage is the full package from the insurer, insuring everything they offer to cover.