Answer:
B)The French fought alongside the colonists in the American Revolution and realized that common people could overthrow an unjust government that did not protect the rights of the people
It is the source of implied powers.
The necessary and proper clasue gives Congress the power to make all laws which shall be necessary and proper for carrying into execution the foregoing power. It enables Congress to make the laws required for the exercise of its other powers established by the Constitution
It was caused by collectivization. The food was gathered than taken away from the Ukrainian people.
Desertification created a barrier to the north.
Answer:
Railroad accidents were frequent and deadly. Westinghouse's 1869 version, the straight or direct air brake, used air hoses to connect the cars. When the engineer turned on the brakes, air pressure turned the brakes on in each car of the train.Air brakes are used in trucks, buses, trailers, and semi-trailers. George Westinghouse first developed air brakes for use in railway service. He patented a safer air brake on March 5, 1872. Originally designed and built for use on railroad train application, air brakes remain the exclusive systems in widespread use.A railway air brake is a railway brake power braking system with compressed air as the operating medium. Modern trains rely upon a fail-safe air brake system that is based upon a design patented by George Westinghouse on April 13, 1869.
Explanation: