GEOLOGY

EARTH SCIENCE

TECTONICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why was Alfred Wegner’s theory of Continental Drift not immediately accepted by scientists?
A
there was no mechanism to explain how Continental Drift happened.
B
The theory of Continental Drift was immediately accepted by the scientific community.
C
there was no evidence to support his theory.
D
Scientists did not think it was possible for the Continents to move.
Explanation: 

Detailed explanation-1: -The main reason that Wegener’s hypothesis was not accepted was because he suggested no mechanism for moving the continents. He thought the force of Earth’s spin was sufficient to cause continents to move, but geologists knew that rocks are too strong for this to be true.

Detailed explanation-2: -Plate tectonics explains why Earth’s continents are moving; the theory of continental drift did not provide an explanation. Therefore, the theory of plate tectonics is more complete.

Detailed explanation-3: -The continental drift hypothesis (introduced by Alfred Wegener in 1912) states that at one point in time, all of the continents were joined together as one large mass of land, then the land spread apart and drifted into their current positions.

Detailed explanation-4: -Geologists came to accept the Theory of Plate Tectonics in the late 1950s and early 1960s after coming to understand the concept of seafloor spreading. Seafloor spreading happens on the seafloor where oceanic plates are moving away from each other.

There is 1 question to complete.