CHAPTER 4 PRACTICECheck what
Check what
we understand.
Choose a topic. Nexa can make new questions or flashcards from the Chapter 4 material.

Choose an answer to see an explanation. You can try the same questions again.
?
Ready to practice?
Make five questions about Chapter 4 and see how much we know.
Review with flashcards.
Make six cards. Turn each one over to read the answer.