good morning here are the answers to the unit 10 lesson 6 quick check:

Which of the following did the Antarctic Treaty do for Antarctica?
answer: D. It set Antarctica aside for scientific research

What is pack ice?
answer: D. large, seasonal masses of ice that form and float on water

Why is the ozone layer in Antarctica significant?
answer: A. It is getting thinner, allowing more harmful ultraviolet rays to reach Earth.

!DISCLAIMER! please only use this to check your work do not use this to cheat thank you ;)