Answer:
C or D
Explanation:
When we say a furnace is “sealed combustion,” it means it draws on air from outside the house to use for burning fuel (i.e. combusting fuel). ... It's closed-off and draws air through a plastic PVC pipe that connects it to the outside. A second pipe attached to the combustion chamber sends out the exhaust
Answer:
Under the separation of powers, each branch of government has a specific function. The legislative branch—the Congress—makes the laws. The executive branch—the president—implements the laws. The judiciary—the court system—interprets the laws and decides legal controversies.