1.    What is the significance of the Prairie grasslands of North America?

Which of the following is NOT one of the Great Lakes – HOMES?

Which region has some of the oldest rocks in the world dating back to 4.3 billion years and was eroded by glaciers during the Ice Age?

I am the tallest mountain in North America that was pushed upwards by tectonic forces. Who am I?

Which river forms the US-Mexico border and sustains the life of 6 million people?

Which region in the world has 90% of the world’s earthquakes and 75% of the world’s active and dormant volcanoes?