Which of the following statements about the interaction of Earth's systems is true? A. The interaction between Earth's systems is limited to a response to human activity.
B. The Earth's system interact using positive feedback only.
C. The Earth's systems interact using negative feedback only.
D. All of the Earth's systems interact with each other.

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.

it sounds like either a or c