Which of the following is not a resource the appalachian mountain range is well known for providing? .

a. silver
b. coal
c. petroleum
d. iron

it should be petroleum.

Explanation:

petroleum can only be found in reivoirs deep under ground near the sea

a mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. this uplifting of the ocean floor occurs when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.a geomagnetic reversal is a change in a planet's magnetic field such that the positions of magnetic north and magnetic south are interchanged.