Erosion

Which of the following actions causes the deposition of sand at a delta?

• river water slowing as it enters the ocean
• salt water & fresh water mixing together
• ocean waves transporting sand toward land
• ocean water slowing as it reaches the coast

Which of the following best describes how erosion by groundwater might create a landform?

• Acidic water dissolves rock to form a cave
• Stream slowly wears away rock and soil
• Waves crashing against a shoreline
• Sediment building up to form a delta

What is the movement of soil from one place to another?

• weathering
• deposition
• discharge
• erosion

Sediment deposited as fast-flowing river reaches a flatter area of land is

• river dleta
• floodplain
• alluvial fan
• oxbow lake

When would a river form a delta?

• when the river meanders across a plain
• when the river leaves the mountains
• when it is in the mountain
• when it enters the ocean

What is groundwater?

• any form of liquid water
• water that is not moving
• water on Earth's surface
• water below Earth's surface

What would be expected to remove the most sand from a barrier island during a storm?

• waves depositing debris on a island
• currents moving sand along the island
• large waves crashing across the island
• strong winds blowing across the island

What is the place where land and a body of water meet?

• delta
• shoreline
• groundwater
• alluvial fan

Which landform is formed because of the erosion of groundwater?

• valley
• canyon
• channel
• cavern

What causes a valley to form first?

• earthquake
• running water
• landslide
• erosion by wind