Question

Identify the factors that cause magnetic stripes to form along the ocean floor. Select the two correct answers.(1 point)
Responses

Magnetic direction of rock changes as Earth’s magnetic poles drift.
Magnetic direction of rock changes as Earth’s magnetic poles drift.

Rock forming at the oceanic ridge pushes older rock outward in both directions.
Rock forming at the oceanic ridge pushes older rock outward in both directions.

Magma acquires the magnetic direction present on Earth when it hardens into rock
Magma acquires the magnetic direction present on Earth when it hardens into rock

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. **Rock forming at the oceanic ridge pushes older rock outward in both directions.**

These processes are fundamental to the formation of magnetic stripes, as the cooling magma records Earth's magnetic field at the time of solidification, and the movement of tectonic plates leads to the creation of symmetrical patterns of magnetic stripes on either side of the mid-ocean ridges.