This type of coma is usually reversible once the blood sugar is corrected. Oxygen deprivation: Oxygen is essential for brain function. Cardiac arrest causes a sudden cutoff of blood flow and oxygen to the brain, called hypoxia or anoxia.
The external power supply is the AC power adapter that converts household AC electricity voltages to the much lower DC voltages needed to charge a mobile phone's internal battery.
Internalizing the externality means shifting the burden, or costs, from a negative externality, such as pollution or traffic congestion, from outside to inside (external to internal). This can be done through taxes, property rights, tolls, and gov...