In a unitary system, the central government has all the power. In a federal system, some powers are given to the central government and other powers are given to the lower levels of government (provinces or states). ... In a federal system, they have a right to their powers.
They were striking a blow for freedom against imperialism(b)
Answer: A) Lincoln signed the Pacific Railroad Act of 1862 into law, which stimulated the construction of the railroad.
Explanation: Just took the test :)
You’re not gonna like my answer but-
Just study them. You can write a timeline of the battles or even find one online and keep reading it until you have it implanted in your memory.
Other than that, I dunno what to say
Good luck on that test!