Answer:
1) The huge frozen landmass at the bottom of our planet is more than just spectacular icing on the globe. It could be vital for our survival too. The Antarctic ice deflects some of the sun's rays away from the Earth, keeping temperatures liveable.
2) D
Explanation: Hope this help :D
Answer: D). Dangerously intensify rivalries between European states seeking to acquire territories and resources.
Answer:
Plantation labor
four million enslaved people in the U.S. in 1860, nine out of ten lived on farms and plantations (mostly cotton plantations), and half lived in the Deep South.
Answer: C The loss of troops convinced Lee and the Confederacy to never again invade the North.
Explanation: I had this question and got it right