By which mechanism does older oceanic rocks move at a ridge?

1. Magnetic forces move the rock

2. Continents drift and move the rock

3. The ridge subducts and moves the rock

4. New molten material rises and moves the rock

Question

Biology

Alberto James

9 July, 22:14

By which mechanism does older oceanic rocks move at a ridge?

1. Magnetic forces move the rock

2. Continents drift and move the rock

3. The ridge subducts and moves the rock

4. New molten material rises and moves the rock

+2

Answers (2)

Know the Answer?

Reyna Solis · Answer 1

The answer is; 3

The ridge is a subduction zone. The oceanic plate usually subducts below the continental plate. Old crust is consumed at convergent boundaries while new crust is formed at divergent boundaries by uprising magma from the mantle. This movement of plates is powered by convection currents of the mantle.

Camila Malone · Answer 2

The ridge subducts and moves the rock

By which mechanism does older oceanic rocks move at a ridge?1. Magnetic forces move the rock2. Continents drift and move the rock3. The ridge subducts and moves the rock4. New molten material rises and moves the rock

By which mechanism does older oceanic rocks move at a ridge?

1. Magnetic forces move the rock

2. Continents drift and move the rock

3. The ridge subducts and moves the rock

4. New molten material rises and moves the rock