Which two continents did Wegener cite as having the best evidence of a close coa
ID: 290066 • Letter: W
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Which two continents did Wegener cite as having the best evidence of a close coastline fit? Europe and Africa North America and Europe OSouth America and Africa O India and Asia QUESTION 3 O Mantle plumes O Decompression melting Rift zones QUESTION 4 What is the difference between a reverse fault and a thrust fault? O A reverse fault lengthens the crust, whereas a thrust fault shortens the crust OReverse faults are associated with convergent boundaries, and thrust faults are associated with transform boundaries OA thrust fault has a fault angle of less than 45, whereas the angle of a reverse fault is greater.Explanation / Answer
Question 1: Answer: South America and Africa. Explanation: In the world map, when South america and Africa were assumed to be joined and drawn together, it fits closely. This made Wegener think that the continents were once together and due to the movement of tectonic plates, divergence took place and continents moved away from one another.. Question 3: Answer: Decompression melting. Explanation:This is the process which involves upward movement of earth's mantle whereas rifting is the formation of linear cracks and the mantle plume is the result of the mantle convection and it is not opposite to the effects of mantle convection. Kimberlite on the other hand is a rock and it is not a process. Question 4: Answer: A thrust fault has a fault angle less than 45 degree, whereas the angle of a reverse fault is greater. Explanation: Thrust fault is also a type of reverse fault. Its dip angle is less than 45 degrees.
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