What is the first step of seafloor spreading?

A crack forms in oceanic crust.
Molten rock rises up through oceanic crust.
Molten rock solidifies at the center of the ridge.
New material pushes older rock away from the ridge.

Ineed quickly! which of the following would not be considered an example of the transition of europe into the formation of larger nation-states? a. the hundred years' war b. the unification of italy c. the marriage of isabella and fernando d. the height of feudalism

The primary agent of contact metamorphism is

What is a small water source like a stream or brook?