Erosion by Wave Action and Moving Ice

What is erosion?

• Building up of rocks and soil by the action of wind, water, or ice

• Wearing away or breaking down of rocks and soil by the action of wind, water, or ice

• The process of creating new landforms

• The movement of rocks and soil by animals

How does wave action contribute to erosion?

• By creating new land and adding to the shoreline

• By reducing the force of the waves and protecting the shoreline

• By wearing away the shoreline and breaking down rocks and sediment.

• By increasing the stability of rocks and sediment

What are some landforms created by wave erosion?

• Mountains, valleys, and plateaus

• Deserts, canyons, and plains

• Volcanoes, lava fields, and calderas

• Sea cliffs, sea caves, and sea arches

Explain the process of longshore drift.

• Sediment being transported along the coastline by the movement of waves and currents.

• Sediment being transported by volcanic activity along the coastline

• Sediment being transported by underground rivers along the coastline

• Sediment being transported by animals along the coastline

What is the role of moving ice in erosion?

• Blowing away rocks and sediments

• Creating new rocks and sediments

• Scraping and plucking rocks and sediments

• Melting and freezing rocks and sediments

What are some features formed by glacial erosion?

• Volcanic craters, lava tubes, and hot springs

• Waterfalls, meanders, and oxbow lakes

• Sand dunes, canyons, and plateaus

• Cirques, arêtes, and U-shaped valleys

How does the movement of ice contribute to the formation of U-shaped valleys?

• Volcanic eruption

• Tectonic plate movement

• Wind erosion

• Glacial erosion

Explain the difference between abrasion and plucking in glacial erosion.

• Abrasion breaks rocks into smaller pieces, while plucking creates deep grooves in the rock surface.

• Abrasion is a slow process, while plucking is a rapid process.

• Abrasion is caused by wind erosion, while plucking is caused by water erosion.

• Abrasion smooths rocks, while plucking lifts and carries rocks away.

What are some examples of coastal features formed by wave action?

• Sea cliffs, sea stacks, wave-cut platforms, and beaches

• Volcanoes, glaciers, rivers, and plateaus

• Caves, canyons, waterfalls, and valleys

• Mountains, deserts, forests, and lakes

How does erosion by wave action and moving ice impact the environment?

• Creating new landmasses

• Reducing air pollution

• Increasing biodiversity

• Shaping coastlines, altering habitats, and causing loss of land