Mid-ocean ridges tend to be Group of answer choices difficult to discern from the abyssal plains. associated with the margins of continents. roughly symmetrical about the ridge axis. topographic lows on the ocean floor.

c. seafloor spreading occurs.

d. crust becomes molten rock.

e. denser plates slide under lighter plates.

the precambrian aged rocks could be found in australia. australia is a region that has a lot of ancient civilization history from million years ago. in this region, there are a lot of recognizable fossils buried in its land which is considered a precambrian-aged rocks