The evidences that supports Hess’s theory of seafloor spreading are:
B. The tilt and rotation of the Earth’s axis.
C. The age of different rocks on Earth’s surface.
D. Pillow-shaped rocks found in the sea.
What is seafloor spreading?
Seafloor spreading refers to a process that involves the formation of new oceanic crust due to volcanic activity and an upwelling of molten magma at mid-ocean ridges, as well as a subsequent outward movement from the ridge.
Basically, the theory of seafloor spreading was established by Harry Hammond Hess and it can be used to explain in details how a new oceanic crust is created or formed at mid-ocean ridges because it grows from the center, with an upwelling of molten material (basalt) from the Earth's mantle along the mid-ocean ridges.
In conclusion, the evidences that supports Hess’s theory of seafloor spreading are:
- The tilt and rotation of the axis of planet Earth.
- The age of different rocks on the surface of planet Earth.
- Pillow-shaped rocks that are found in the sea.
- The age of oceanic crust and ocean-floor features.
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