Coastal Processes and Effects

The video discusses coastal processes and their effects, focusing on erosion, submersion, and saltwater intrusion. It explains how waves, tides, and sea level rise contribute to these changes, and highlights the hazards they pose. The video also covers the impact of coastal flooding and tectonic movements on shorelines.

What are the main driving forces behind shoreline changes?

• Marine life

• Weathering, erosion, and shift

• Tides and currents

• Human activities

How are wind-driven waves formed?

• By the friction between wind and surface water

• By the gravitational pull of the moon

• By the rotation of the Earth

• By underwater volcanic activity

What is the effect of strong storm winds on coastal areas?

• They push water up on the protected shore

• They prevent coastal erosion

• They decrease water levels

• They cause the formation of new beaches

What causes spring tides?

• The alignment of the sun, earth, and moon

• The right angle formation of the sun, earth, and moon

• The rotation of the Earth

• The melting of polar ice caps

What is the result of the gravitational force of the sun and moon acting at right angles?

• Low tides

• Spring tides

• Neap tides

• High tides

What is the current rate of global average sea level rise?

• 1 millimeter per year

• 10 millimeters per year

• 2 millimeters per year

• 5 millimeters per year

What natural event can cause tsunamis that affect coastal areas?

• Monsoons

• Hurricanes

• Earthquakes

• Tidal waves

What is coastal erosion?

• The accumulation of sand on the beach

• The movement of tectonic plates

• The rise of sea levels

• The wearing away of land by the sea

What is submersion in coastal processes?

• The deposition of sediment along a shoreline

• The movement of tectonic plates

• The sinking of land below sea level

• The rise of land above sea level

What causes saltwater intrusion?

• Increase in freshwater levels

• Decrease in groundwater levels

• Decrease in sea levels

• Increase in land elevation