The correct answer for this question would be C) At seafloor spreading centers or the third option.
If about 30% is A then 30% is T. That leaves 40% to be G + C...so each must be around 20%.
The answer is D, serving as a primary source of energy for the body.
Seafloor spreading is a process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge. Seafloor spreading helps explain continental drift in the theory of plate tectonics.
I would go with A : weathering and erosion
I was going to say C : volcanoes and earthquakes but when you read the pictures it says “ Mountains , low hills & rolling plains “
