Watch the movie on What Causes Ice Ages posted in the video folder before you go to the Discussion Board to answer the following questions. Minimum 200 words. For full points, provide at least two replies.
- What did you learn that surprised you about the last Ice Age, explain?
- About how much of North America was covered in thick ice sheets 20,000 years ago?
- How long did the last Ice Age last, and about how long ago did it end?
- What cause(s) do scientists give for why the last Ice Age ended?
Sample Solution