The main reason why United States was involved in Vietnam is that the United States believed in the so called Domino effect: that if one country becomes communist, others might become communist too. So they got involved to stop the spread of communism (option a)
Answer: The reading on the scale will decrease as the elevator descend.
According to Newton's second law of motion which explains that the rate of change of the momentum of a body is directly proportional to, and in the same direction as, the net force acting on it.
In essence as a body moves towards ground, it weighs less and even weighs more upon impact with the ground.
If peradventure, the whole system is in free fall, you, the elevator and the scale will weigh nothing at all.
Voters can be overwhelmed and vote by randomly guessing.
It puts too much of the onus of learning about the issues and candidates on voters.
It can include, state, local, municipal, national and federal candidates.
