Canada has 2 of the largest impact on Earth.

Canada has two of the largest impact craters on Earth.

Explanation:

Canada is a vast country, second by size in the world, so it is no wonder that it has a lot to offer when it comes to geography and geology. Among many other things, something that Canada can say it has in relative abundance are impact craters. There are impact craters in pretty much every province and territory of Canada, some being relatively small, while some being huge, and some well preserved, while some not so much.

Not just that Canada has a lot of impact craters, but it is home to some of the largest in the world. The two that are among the largest in all of the world are Sudbury and Manicouagan.

Sudbury is located in Ontario. It is 250 km across, making the second largest in the world. Its age is estimated to be at around 1.85 billion years.

Manicouagan is located in Quebec. It is covered with lake waters in a big portion and it is 100 km across. The age of this impact crater is estimated at 214 million years.