Trade in the Middle Ages encouraged/aided which of the following in Africa?
a. Spread of Islam
b. The end of slavery
c. Spread of Chinese language
d. Development of music

can you post options?

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.

the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.

travels along an axon. this triggers a wave of electrical activity that passes from the cell body along the length of the axon to the synapse