In physical size, Canada is:
1. the largest nation in the world
2. the tenth largest nation in the world
3. smaller than Russia, United States of America, Brazil, and France
4. the second largest nation in the world

Mexico city is an example of how humans alter their environment because it was a. one of the world’s largest cities b. built on drained and filled lake beds c. built after conquest by the spanish d. once the capital of the aztec empire