Car ans boat batteries will both work on either vehicles.
A boat battery is just built a little tougher. This is to compensate for the rough banging and bumps of a boat ride. Boat batteries just cost a little more.
When you say boat battery if you are referring to a Deep Cycle battery as used to power a trolling motor then no, it is not suitable for use in a car. However, if you are referring to a battery in a boat used to start the engine and it is not a Deep Cycle battery it will work just fine in a car as long as it fits the battery holder, can be strapped down, and the battery posts are orientated correctly.
Voltage is the same but amp hour capacity of the car battery is much higher.
Yes, if your car battery is the same voltage as the ATV battery.
The same way you charge a car battery. The only difference in them is that the marine battery is a deep cycle battery, meaning it is designed to be run completely down without damaging the battery. Ideally you need a charger designed to charge deep cycle batteries but you can charge one with a normal battery charger.
Same basic design/different group size.
yes they are the same motor but will have different components because one was designed for a boat and the other for a car
No, an automobile battery is a wet cell battery not a dry cell battery.
Changing a boat battery can be specific to the type of boat. Many boats have a small plastic box with the battery in it, while others have the battery hidden in a compartment.
Truck Battery versus Car BatteryThere is no difference in a truck battery or a car battery unless you are talking about a semi. As long as the battery fits, it the same voltage, and has sufficient CCA (cold cranking amps) it will work in a truck or car.
As long as both batteries are the same voltage, you can jump start with the battery. If you want to charge the battery then use a battery charger.
Chargers don't care is the battery is used on a boat, a car, or whatever. What is important is that you match the voltage of the battery and the charger. Don't use a 12volt charger on a 24volt battery, etc.
The same way it does when you are driving a car