I think <span>climate change</span>
1: left atrium, right atrium, right ventricle.
2: atrioventricular valve, valves in the aorta, valves in the veins.
Answer:
Voltage describes the amount of energy associated with electric charge as it moves around in a circuit. Its standard unit, the volt, is related to the standard units of electric charge (the coulomb) and energy (the joule) such that one volt is equal to one joule of energy for each coulomb of electric charge.