Question

1. mid - ocean ridges form at __________ plate boundaries from magma extruded onto the sea floor.

conductive
divergent
transverse
convergent

1. trenches are found at ________ boundaries *

conductive
divergent
transverse
convergent

Explanation:

Mid - ocean ridges form at divergent plate boundaries where tectonic plates move apart and magma rises to fill the gap. Trenches are formed at convergent plate boundaries where one tectonic plate is forced under another in a process called subduction.

Answer:

1. B. Divergent
2. D. Convergent