Mid-oceanic ridges is C. DIVERGENT PLATE BOUNDARY IN OCEANIC PLATES.
A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range that is formed by plate tectonics.The ocean floors are uplifted<span> when convection currents rise in the mantle beneath the oceanic crust and create magma where two tectonic plates meet at a divergent boundary.</span>
<span>The answer is AA
AA- A quiet eruption may produce this type of slow moving cooler lava that hardens to form rough chunks.</span>
Animism, belief in innumerable spiritual beings concerned with human affairs and capable of helping or harming human interests. Animistic beliefs were first competently surveyed by Sir Edward Burnett Tylor in his work Primitive Culture (1871), to which is owed the continued currency of the term.
The layer is Asthenosphere. :)