Unit 3 - Changes in Geosphere Part 1

Front

What is deposition?

Back

Deposition is the process by which sediments, soil, and rocks are added to a landform or land mass. It occurs when materials are dropped off in a new location, often at the mouth of rivers, forming features like deltas.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by wind, water, or ice and transported to another location. It can change landscapes over time.

Front

What is a volcano?

Back

A volcano is an opening in the Earth's surface where molten rock, ash, and gases can escape. Volcanic eruptions can create new landforms and affect the environment.

Front

What are seamounts?

Back

Seamounts are underwater mountains formed by volcanic activity. They can rise from the ocean floor and may eventually emerge as islands.

Front

What is the significance of fossils in mountains?

Back

Fossils found in mountains, like those in the Andes, indicate that the area was once underwater, providing evidence of past environments and geological changes.

Front

What is the difference between weathering and erosion?

Back

Weathering is the breaking down of rocks and minerals at the Earth's surface, while erosion is the movement of those materials from one place to another.

Front

What is a delta?

Back

A delta is a landform that forms at the mouth of a river where it meets a body of water, created by the deposition of sediment carried by the river.

Front

What is the role of wind in erosion?

Back

Wind can erode surfaces by carrying away loose particles, shaping landscapes, and transporting sand and dust over long distances.

Front

What is the safest location to build a town near a volcano?

Back

The safest location is usually away from the direction of prevailing winds that carry ash and smoke, as indicated in the question about the volcano.

Front

What is a marine environment?

Back

A marine environment is a habitat found in oceans and seas, characterized by saltwater and home to various marine life.