Question

which of the following provides the most evidence for the theory of plate tectonics?
a. the spreading of the sea floor
b. the coloring of the city moths
c. the changing of the seasons
d. the locations of the glaciers

Explanation:

• Option A: Sea - floor spreading is a key piece of evidence for plate tectonics. It shows that new oceanic crust is formed at mid - ocean ridges as tectonic plates move apart, which supports the idea of plate movement.
• Option B: The coloring of city moths is related to natural selection (industrial melanism) and has nothing to do with plate tectonics.
• Option C: The changing of seasons is due to the Earth's tilt and its orbit around the Sun, not plate tectonics.
• Option D: The locations of glaciers are related to climate and geography (like latitude, altitude) and not to plate tectonics.

Answer:

A. the spreading of the sea floor