1. What does a glossary do? helps you check your reading comprehension defines key words used in an article or book tells a reader what steps to perform next
gives information about a book's author​

A glossary defines key words used in an article or book.

Explanation:

the african society basically suffered the consequences of colonization and apartheid directly attacking the black people, first, during the colonialism and its main idea which which "white people" had better rights, affecting   them principally in the right to establish black people in their territories, access to quality education and health services and took away any civil right even to the black people to feel they have the same opportunities as the settlers.

cavern or cave

i hope this