The telephone, the power plant, the refrigerated railroad car, the moving assembly line, and the car.
Answer:
With so many terms to describe jewellery, we explain the difference between solid gold, gold-plated and gold-filled jewellery. Solid gold is the most valuable and durable form of gold. Gold-plated is a very thin layer of gold coating a piece of metal, gold-filled involves bonding a small amount of gold to a base metal.
Explanation: :D
The "elastic clause" allowed Congress to make laws it needs to carry out its own powers. An example of how Congress uses it today is how Congress needs to make laws that shall be necessary and proper for carrying into execution of the forgoing powers, and all the other powers vested by the Constitution in the Government of the department.