Final answer:
Coasts can be classified as erosional or depositional, depending on whether they primarily lose sediments or shoreline. Erosional coasts experience removal of sediments and the shoreline, while depositional coasts accumulate sediments and build up their shorelines.
Step-by-step explanation:
Coasts can be classified as erosional or depositional depending on whether they primarily lose sediments or shoreline. Erosional coasts experience the removal of sediments and the shoreline through processes such as wave action, while depositional coasts accumulate sediments and build up their shorelines. Examples of erosional coasts include rocky cliffs and sea caves, while examples of depositional coasts include barrier islands and sandy beaches.