Question

Pleaseeee help mee :')

Answer 1

Answer:

sea floor spreading occurs at mid ocean ridges

Answer 2

Answer:

As given below

Explanation:

1. mid-ocean ridges

2. as the plates slip past each other at these boundaries.

3. wide dome shape and thick lava.

4. An oceanic crust is subducted under the continental crust.

5. the continents were once together as the one supercontinent.

• Thus due to the seafloor spreading the formation of new plates is done from the mid-oceanic crust.

• The transform fault is the margin that is moving back and forwards direction in dextral motion and hence this boundary is prone to earthquakes and volcanic eruptions and floods.

• Cinder cone and stratovolcanoes have a high density of lava and have a wide shaped dome. A trench is formed due to the collapse of a plate of lighter mass with that f heavier mass which sinks below and this then brings into the mantel and subduction takes to form a deep trench.