Answer:
Mid-oceanic ridge and a ridge
Explaination:
The mid ocean ridge is where seafloor spreading takes place along a divergent plate boundary.
They are usually formed by plate tectonics with a depth of about 2,600 meters (8,500 ft) and rises about two kilometers above the deepest portion of an ocean basin.
A rift represents a lowland region that forms where Earth's tectonic plates move apart, or rift. An example is the Rhine rift valley in Germany.
C. Ways to reduce cost of production
Answer:
In general, erosional coasts are those with little or no sediment, whereas depositional coasts are characterized by abundant sediment accumulation over the long term. Both temporal and geographic variations may occur in each of these coastal types.