Answer:
A.
Explanation:
Most animal exchanges came from the Old World to the New World.
C. It led to a revolt againt the Chinese imperial government.
Answer: President Dwight Eisenhower proclaimed standards for flying the American flag at half staff on March 1, 1954. Prior to this date, there were no official rules for flying the flag at half staff, which led to policies that differed from area to area.
Explanation:
C.
This is because of the phrase “laid and levied by the legislatures of the several states”.