Question

Regional climate and local geology greatly affect the appearance and behavior of coasts. Climatic and geologic factors that influence coasts include: Proximity to rivers that deliver a great amount of sediment The deformation rate or absence of tectonic activity The erosion susceptibility of the bedrock Frequency of intense storms, and prevailing wind direction Configuration of the coastline and nearshore areas In order to understand the complexities of coastlines, a classification system using sea level as a reference is used. Geologists have created two general categories for coastal zones that describe how they change relative to sea level: whether the coast appears to be emerging from underneath the water or submerging below it. Emergent coasts appear to be moving up out of the water and develop as a result of tectonic uplift or sea level fall. Submergent coasts appear to be sinking and are created when the land is subsiding or sea level is rising. Emergent coasts are formed by tectonic uplift or sea level fall; therefore, erosion processes play an important role in shaping them. As a result, we might see steep cliffs and previously submerged features now above water level. Conversely, because submergent coasts are the result of subsidence or sea level rise, we expect depositional processes (such as large accumulations of sediment) and inundation by water of rivers entering the sea to play important roles in shaping them. Select the two that apply.

Answer 1

Emergent coasts are likely to be found in areas experiencing active tectonic uplift.

Frequent flooding is a characteristic of rivers that flow to submergent coastlines.

Step-by-step explanation:

A coast is defined as mass of land that is close to the sea or the land mass touching the sea are called as the coast. And the boundary of the coast which meets the water surface is called as the coastline.

There are different types of coast that are formed due to different physical phenomenon of the nature. Both the regional climate and the local geology affects the behavior as well as the appearance of the coast.

Emergent coast is the coast that is formed by the relative fall in the elevation of the sea level due to the reduction of volume of water in the ocean as well as due to the tectonic upliftment of the land surfaces. And in the submergent coastlines, there is frequent flooding which is the characteristics of the rivers flowing to these submergent coastlines.