the _ part of canada has a much lower population than other parts of canada due to the extremely cold climate.

northern
\southern
eastern
western

northern

The correct answer is "Northern" part of Canada. The Northern part of Canada has a much lower population than other parts of Canada due to the extremely cold climate.

The correct answer is "northern." The northern part of Canada has a much lower population than other parts of Canada due to its extremely cold climate and remote location. To get the answer to this question, you could have looked at a map of Canada and identified the regions, then considered the climate and geographical factors that contribute to population distribution.