you have a blown head gasket
Heat from the engine causes liquid to expand. It used to overflow onto the ground if it caused enough pressure to open the radiator cap. The overflow tanks were installed to automatically catch and return the coolant to the cooling system.
In a Car: A tank to hold "overflow". When fluids heat up, they expand, and like radiator fluid, they need a place to go until they cool. Some cars keep these under some pressure, and if there is a leak, then an engine light will now come on. In the older cars, a leak in this tank would be a minor problem because you'd loose fluid when it leaked out of the overflow.
In a Car: A tank to hold "overflow". When fluids heat up, they expand, and like radiator fluid, they need a place to go until they cool. Some cars keep these under some pressure, and if there is a leak, then an engine light will now come on. In the older cars, a leak in this tank would be a minor problem because you'd loose fluid when it leaked out of the overflow.
The three agents of metamorphism are heat, pressure, and chemically active fluids. Heat causes recrystallization of minerals, pressure can deform rocks, and chemically active fluids can alter the mineral composition of rocks.
FRICTION
Can a bad heatercore cause antifreeze to come out overflow jug. And heat go off and on.
Friction
Wrong, transfer of heat by conduction does take place in fluids.
Heat, Pressure, and Chemically active fluids.
The three agents of metamorphism are heat, pressure, and chemically active fluids. Heat causes minerals to recrystallize, pressure changes the mineral structure, and chemically active fluids can introduce new elements into the rock.
Wrong, transfer of heat does take place in fluids. In fact it can take place more efficiently in fluids than in solids because convection is possible in fluids.
Convection