6 years is how long the u.s.senate serves
When union workers refuse to work due to bad work conditions, in other words due to contractual disagreements, this is called a strike.
Sometimes when the union is big and the work is important, such as air transport, such strikes paralyze the whole country.
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Explanation:
D. it weakened other Civilization and made it easier for the Islamic faith to spread ....
The correct answer is letter A
Explanation: There are no other charges nearby.