Answer the questions.
1. Name the three major countries of North America in order of size,
2. Name the physical divisions of North America,
3. Distinguish between an intermontane plateau and a piedmont plateau. Give one example of each from North America,
4. What are canyons?
5. Which region of North America is prone to frequent earthquakes?
6. Name the lakes that are together referred to as the Great Lakes.
7. Name the ranges of the Western Cordilleras,
8. How are the rivers and lakes important in North America?
Answers
Answer:
1. Rank Country Area (km²)
1st Canada 9,984,670
2nd United States 9,629,091
3rd Mexico 1,964,375
2. North America can be divided into five physical regions: the mountainous west, the Great Plains, the Canadian Shield, the varied eastern region, and the Caribbean.
3. When a plateau is covered by mountains on all sides, it is called an Intermontane plateau. The Tibetan plateau, the Bolivian plateau are examples of the Intermontane plateau. ... The best examples of Piedmont plateaus are the Malwa plateau in India, the Patagonian plateau in Argentina etc.
4. A canyon or gorge is a deep cleft between escarpments or cliffs resulting from weathering and the erosive activity of a river over geologic time scales.
5. A few areas of the midwestern and eastern United States are more prone to earthquakes than others. The most earthquake-prone areas include Charleston, South Carolina, eastern Massachusetts, the St. Lawrence River area, and the central Mississippi River Valley.
6. Great Lakes, chain of deep freshwater lakes in east-central North America comprising Lakes Superior, Michigan, Huron, Erie, and Ontario. They are one of the great natural features of the continent and of the Earth.
7. The Cordillera is a complex region with three distinct mountain ranges: the Rocky Mountains in the east, the Coast Range (California Borderland) and Klamath Mountains on the west coast, and the Sierra Nevada and Cascade Mountain ranges just inland from the west coast.
8. River and lakes are abundant in North America and they are of great importance. It provides the water for both the industrial as well as agricultural purpose near and around the rivers and lakes. It also plays an important role in regulating the quality of water and in the water cycle process.
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