Which event marked the end of cultural and economic unity along the silk road? a. the rise of the byzantine empire b. the fall of the mongol empire c. the children's crusade d. the battle of hastings

explanation:

the muslim keep their culture pure by finding new value

the correct answers are: 1) lay and collect taxes and duties; 2) pay debts; 5) borrow money;   6) regulate commerce with foreign nations.

article 1, section 8. refers to the powers of congress. according to the united states constitution: “the congress shall have the power to lay and collect taxes, duties, imposts, and excises, to pay the debts and provide for the common defense and general welfare of the united states.”