Final answer:
The Magic School Bus episode "In the Arctic" confirmed that the Arctic region is cold, dark, and has little vegetation. The population of Inuit and Aleut people in the Arctic is small due to the inhospitable land. The Arctic region is flat and consists of trackless tundra.
Step-by-step explanation:
Three things that were confirmed about the Arctic in the Magic School Bus episode "In the Arctic" are:
- The Arctic region is cold, dark, and has little vegetation.
- The population of Inuit and Aleut people in the Arctic region is small due to the inhospitable land.
- The Arctic region is flat and consists of trackless tundra.