according to hesss theory, what might happen if the magma under a mid - ocean ridge cools?\nthe magnetic…

according to hesss theory, what might happen if the magma under a mid - ocean ridge cools?\nthe magnetic stripes might reverse direction.\nthe deep - ocean trench might become deeper.\nthe crust at the ridge might form more quickly.\nthe plates on either side of the ridge might stop moving.

according to hesss theory, what might happen if the magma under a mid - ocean ridge cools?\nthe magnetic stripes might reverse direction.\nthe deep - ocean trench might become deeper.\nthe crust at the ridge might form more quickly.\nthe plates on either side of the ridge might stop moving.

Answer

Brief Explanations:

Hess's theory is about seafloor - spreading. Magma at mid - ocean ridges rises and cools to form new crust, which pushes the tectonic plates apart. If the magma cools, there is no new material to push the plates, so they might stop moving. Magnetic stripes are related to Earth's magnetic field reversals, not directly to magma cooling at ridges. A deeper trench is not a direct result of magma cooling at ridges. Slower magma cooling would slow crust formation, not speed it up.

Answer:

The plates on either side of the ridge might stop moving.