Question

When it was first proposed, Alfred Wegener's continental drift hypothesis was heavily criticized by earth scientists. What was one of their primary objections to the continental drift hypothesis?
A) Wegener couldn't explain the worldwide distribution of fossil species.
B) Wegener falsified some of his data to better fit his hypothesis.
C) Wegener did not offer an explanation for how the continents move.
D) The continents did not fit together as well as Wegener initially claimed.

Answer 1

Answer:

Option (C)

Explanation:

The continental drift theory was introduced by Alfred Wegener. He said that the continents moved over the vast ocean surface from one place to another.

He contributed many pieces of evidences in support f this theory, which includes the founding of similar fossil assemblages, similar rocks types in the distant continents, matching of the continental boundaries, but he was not able to explain the main mechanism behind the continental motion.

Due to this, this theory was not accepted by the other scientists and he was criticized by them.

Later, this theory was modified into the Plate tectonic theory which was successful in explaining the mechanism behind the continental motion i.e the formation of convection current in mantle that drives the plates movement.

Thus, the correct answer is option (C).

Answer 2

Answer: (c ) wegener did not offer an explanation for how the continent move .

Explanation: the mechanism he explained wasn't expected in the United state then he proposed that continents plowed through the oceanic crust but most geologist in the United state or much of the northern hemisphere taught the idea violated what was known about the strength of rock then, careful calculation of the forces that he claimed then which was a combination of centrifugal force from Earth rotation and the gravitational force that causes tides show them to be too small to move continents