Loading question...
You are in free guest mode. Timed Practice Revision List Attempt History Progress Tracking Create a free account to unlock these tools
Back to Questions
Prev Next
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 At the end of the recording the last word or group of words has been replaced by a beep.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).
* Click on the correct answer

Result:

AI explanationShows the answer. Tap to open.
Option 1: "hot rock"

Explanation: The text states that each plate consists partly of crust and partly of mantle, a thick layer of (hot rock). This directly supports the answer as it is explicitly mentioned in the text, confirming its relevance and correctness.

Option 2: "oceanic circulation"

Explanation: This option is incorrect because the text does not mention oceanic circulation in relation to the composition of the plates. It introduces a concept that is not relevant to the context of plate tectonics.

Option 3: "volcanic activity"

Explanation: While volcanic activity is related to tectonic movements, the text does not state that the plates consist of volcanic activity. This option misinterprets the context and introduces an unrelated concept.

Option 4: "atmospheric pressure"

Explanation: This option is incorrect as the text does not discuss atmospheric pressure in relation to the composition of tectonic plates. It presents an irrelevant idea that does not fit the context of the discussion on plate tectonics.

The rest of this explanation is for members. Sign in free to read why the other options are wrong, key words and tips.

Sign in to read the full explanation

With a free account: Retry and compare every attempt.
Be the first! No community answers here yet. Submit yours and help others learn.
Saving...