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Practice Listening: Select Missing Word
ID: #41094
Short
North America
Instructions
You will see a video about the theory of continental drift and plate tectonics. At the end of the recording the last word or group of words has been replaced by a beep. Select the correct option to complete the recording.
Transcript:
North America and all the other continents seem to stay in the same locations year after year. Actually, however, the continents are moving slowly relative to one another. In the past 200,000,000 years, the continents have moved from the locations shown. The theory of plate tectonics accounts for this movement. According to this theory, the continents and ocean floors are parts of about 30 plates, the largest of which are shown. Each plate consists partly of crust, the outermost layer of the earth, and partly of mantle, a thick layer of (hot rock).
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