1.3.2 Test (CST): Science and Engineering

Question 15 of 25

Which statement could be a scientific theory?

A. Large pieces of Earth's crust move very slowly on its surface.
B. The movement of pieces of Earth's crust explains many geologic phenomena.
C. A variety of geologic phenomena have been occurring for billions of years.
D. Earth's crust varies in thickness between 10 and 70 km.

SUBMIT



Answer :

Final answer:

Plate tectonics is a scientific theory explaining the gradual movements of the Earth's crust, influencing geological features and geological events. It is as fundamental to geology as evolution is to biology, reflecting Earth's dynamic processes and heat transfer mechanisms.


Explanation:

Plate tectonics is a scientific theory that explains how slow movements in the Earth's mantle cause large segments of the crust to gradually shift, leading to continental drift and the formation of geological features. The theory of plate tectonics is as fundamental to geology as evolution is to biology, providing insights into Earth's dynamic processes and heat transfer mechanisms.

It took time for plate tectonics to become accepted due to resistance and lack of evidence in the past. Tectonic plate movements, which occur at rates of a few centimeters per year, can result in earthquakes and volcanic activity along plate boundaries, impacting the Earth's surface and human activities.


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