Identify the factors that cause magnetic stripes to form along the ocean floor. Select the two correct answers.

Question

(1 point)
• Magma acquires the magnetic direction present on Earth when it hardens into rock
• Rock forming at the oceanic ndge pushes older rock outward in both directions
• Magnetic direction of rock changes as Earth's magnetic poles drift.
• Plates move as new rock forms, which causes magnetic direction to skew away from normal.

Answer 1

The two correct answers that cause magnetic stripes to form along the ocean floor are:

1. Magma acquires the magnetic direction present on Earth when it hardens into rock.
2. Magnetic direction of rock changes as Earth's magnetic poles drift.

These factors contribute to the formation of magnetic stripes, as new magma solidifying at mid-ocean ridges records the Earth's magnetic field at the time of solidification, and periodic reversals of Earth's magnetic field lead to the pattern of alternating magnetic stripes.