Igneous rock along the oceanic is younger than the igneous rock farther from the ridges. This evidence supports the theory that
ANSWER
C) the ocean floor is spreading
WHY?
The notion of the seafloor spreading is supported by the fact that the volcanic rock near the oceanic ridges is younger than the igneous rock farther away from the ridges.
The process through which new oceanic crust forms at oceanic ridges and extends away from the ridges is known as seafloor spreading. This theory, which describes how the Earth's lithospheric plates move, is a fundamental idea in plate tectonics.