Because ninety percent of the native population was dead through disease etc
Answer:]
If you worked for the government in 1944 and needed to have a new recruitment poster made, you would go to the "Office of War Information" since this was the source of war propaganda in the US during this time.
There are many landforms that can prevent expansion- bodies of water, mountainous terrian, and a desert are some examples.
It allowed ships to reach far inland.
Answer:
Carbon dioxide levels decreased which meant there wasn't enough in the air to support vegetation. Growth was limited, in other words, because plants were carbon-starved.
