What evidence supports Hess’s theory of seafloor spreading? Check all that apply.fossils of the same animals found in different areasthe direction iron in ocean rocks pointsthe tilt and rotation of the Earth’s axisthe age of different rocks on Earth’s surfacepillow-shaped rocks found in the sea

Iron-bearing minerals in ocean rocks align with Earth’s magnetic field as the rocks form, preserving evidence of changes in the field’s direction and supporting seafloor spreading. The ages of seafloor rocks also fit the theory: rocks are youngest near mid-ocean ridges and become older farther away. Pillow-shaped rocks form when lava cools underwater, showing that new crust forms on the ocean floor. Matching fossils in different areas support continental drift, not specifically Hess’s seafloor-spreading theory; Earth’s axial tilt and rotation are unrelated.

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