I am pretty sure the answer is C. hope this helps
Answer:
The Correct Answer is
States must abide by federal law because of the Supremacy Clause
Explanation:
When a state law clashes with federal law, the supremacy article proceeds to nullify the state law in support of the central law one as long as the federal authority is determined to be in following the rules of the Constitution. The supremacy article also suggests that states are not allowed to command, intervene with, or regulate federal issues.
Slavery has historically been widespread in Africa, and still continues today in some countries.
Systems of servitude and slavery were common in parts of Africa, as they were in much of the ancient world. In many African societies where slavery was prevalent, the enslaved people were not treated as chattel slaves and were given certain rights in a system similar to indentured servitude elsewhere in the world.[citation needed] When the Arab slave trade and Atlantic slave trade began, many of the local slave systems began supplying captives for slave markets outside Africa.
Slavery in historical Africa was practiced in many different forms: Debt slavery, enslavement of war captives, military slavery, slavery for prostitution and criminal slavery were all practiced in various parts of Africa. Slavery for domestic and court purposes was widespread throughout Africa. Plantation slavery also occurred primarily on the eastern coast of Africa and in parts of West Africa. The importance of domestic plantation slavery increased during the 19th century due to the abolition of the Atlantic slave trade. Many African states dependent on the international slave trade reoriented their economies towards legitimate commerce worked by slave labor.
Answer:
France
Explanation:
Several chemicals were weaponized in WWI and France actually was the first to use gas they deployed tear gas in August 1914.