Our changing earth

The raised bank on either side of a river

• flood plain

• levees

• estuary

• meander

What is the thinnest, outermost layer of Earth called?

• crust
• mantle
• outer core
• inner core

An opening in Earth's crust through which lava flows is called ...

• an earthquake
• the mantle
• a volcano
• a mountain

When Earth's plates rub or scrape against one another, the release of energy causes ...

• a volcano
• an earthquake
• a tornado
• continental drift

The "super continent" that combined all of Earth's land into one huge continent millions of years ago is called...

• plate tectonics
• mountain formation
• North America
• Pangea

The process that breaks down rocks into sediment is called...

• erosion
• a landslide
• weathering
• an avalanche

The process that carries sediment away from one place to another is called...

• erosion
• weathering
• waterfall
• landslide

What causes dunes to form?

• glacial deposits
• mountain building
• blowing wind
• movement along faults

Which landform is created by deposition of sediments at the mouth of a river?

• Dune
• Canyon
• Delta
• Glacier

Which of these things cause weathering?

• Wind
• Water
• Ice
• All of these