End of Chapter 11 Questions
1. What are the three steps or stages of erosion?
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2. How is erosion at higher levels of the earth different to erosion at lower levels?
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3. How do we know P.E.I. was once underwater?
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4. What part of Canada was created during the Precambrian era?
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5. What types of rocks make up this landform?
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6. How did it differ in appearance from today?
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7. Where was the eroded material from the Shield deposited and what did the material become?
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8. During the Mesozoic era, the North American plate collided with the Pacific plate. What
resulted from the collision?
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9. Geologists believe that North America was located closer to the equator during the early part of the
Paleozoic era. Why has this tropical location been important to Canada? (hint- think of heating and
transportation)
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10. Why are the last 570 million years of Earth’s history divided into three different eras, while the
preceding four billion years comprise only one era?
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11. Most geologic events happen very slowly. Name two geologic events (1 land building, and 1 erosional)
that happen fast enough for people to see.
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12. Without using your notes or book complete the following.