Answer: Bassically, certain gasses like CO2 (Carbon Dioxide) that come from stuff like burning fossil fuels and global warming, they heat up the earth, are wastes and are used as fuel.
The answer is true it can be traced to one particular reason.
The statement is false, 62% of Canada's population lives in Quebec && Ontario. Most of Canadians live in a narrow corridor at the southern part of the country, which is near the U.S. border.
I really hoped this helped!