I believe wetlands is your answer
The use of mechanized farming techniques is well suited to geographic areas that c. have large expanses of flat land. Regions such as the Canadian Prairies is a large expanse of flat land and as such easily supports mechanization in planting crops such as wheat. Mechanization in agriculture would be hampered in areas that experience frequent flooding as equipment could get stuck in mud or suffer other water damage.
The statements about wegener's theory of continental drift that is false is : the continent has not moved in the past 250 million years
According to wegener's, all the lands were united as one in the past. But it gradually moved apart from each other, creating our current separated continents.
hope this helps
In what is now Canada and the US, firstly the indigenous peoples mostly had a nomadic existence (except for tribes like the Haida who had more or less permanent villages) whereby they followed the game to wherever it was plentiful and derived their economy and material culture partly from it (as in hides for clothing). This would be the case in the hunt for buffalo, and also for deer and caribou in the north. The exception was Mexico, where large agricultural societies developed and were mostly sedentary. In modern times, it is common for small migrations of people to occur like when one mine is closing down and the mine workers move sometimes almost en mass to another mine which could be 1000's of km away.
What is ejected from a volcano like ash,blocks solar radiation from reaching earth’s surface. Therefore it lowers the surface temperature.