Exploring Coastal Landforms

The video explores the dynamic interaction between land and sea along the northwest coast of America, focusing on how erosion and deposition shape coastlines. It explains the formation of cliffs, wave-cut platforms, caves, arches, and stacks due to erosion. Additionally, it covers how deposition creates beaches and spits, influenced by wave energy and wind conditions. The video highlights the ongoing processes that continuously alter coastal landscapes.

What is the primary force shaping the northwest coast of America?

• Tectonic movements

• Erosion

• Deposition

• Volcanic activity

What forms when weathering weakens the top of the land and waves attack the bottom?

• A stack

• A cliff

• A spit

• A beach

What is a wave-cut notch?

• A type of stack

• A hollow formed by weak points in the rock

• A type of beach

• A deposition feature

What happens to an arch when it can no longer support the land on top?

• It becomes a spit

• It turns into a wave-cut platform

• It forms a beach

• It collapses

What is left behind after an arch collapses?

• A cave and a cliff

• A headland and a stack

• A beach and a spit

• A wave-cut platform and a notch

What builds up beaches?

• Destructive waves

• Tectonic activity

• Wind erosion

• Constructive waves

What determines whether a beach is sandy or pebbly?

• The type of fish in the water

• The presence of cliffs

• The wave energy and local geology

• The amount of sunlight

What is a spit?

• A narrow stretch of beach projecting out to sea

• A headland

• A type of cliff

• A wave-cut platform

What causes longshore drift?

• Volcanic eruptions

• Earthquakes

• Prevailing wind blowing at an angle to the coast

• Tidal waves

What forms in the sheltered area created by a spit?

• A cliff

• A wave-cut platform

• Mud flats or salt marshes

• A stack