UNit 4 enviromental geology

Front

What is the fastest portion of a river's flow?

Back

The water flows fastest between points where the river is narrowest and steepest, typically between Point 2 and 3 on a topographic map.

Front

What is erosion?

Back

Erosion is the movement of sediment from one location to another, often caused by water, wind, or ice.

Front

How does a river flow on a flat slope?

Back

A river on a flat slope will flow curving and slow due to reduced gradient.

Front

What is ice wedging?

Back

Ice wedging is a type of mechanical weathering where water freezes in cracks of rocks, causing them to split.

Front

What is a negative feedback loop?

Back

A negative feedback loop is a process that counteracts changes, such as the body consuming sugar to produce heat when cold.

Front

What factors affect river speed?

Back

River speed is affected by gradient, channel shape, and the volume of water.

Front

What is the Coriolis effect?

Back

The Coriolis effect is the deflection of moving objects caused by the rotation of the Earth, affecting wind and ocean currents.

Front

What is sediment transport?

Back

Sediment transport is the process by which sediment is moved from one place to another by water, wind, or ice.

Front

What is weathering?

Back

Weathering is the breakdown of rocks and minerals at the Earth's surface due to various factors, including temperature changes and chemical reactions.

Front

What is thermal stress?

Back

Thermal stress refers to the stress on materials caused by temperature changes, which can lead to cracking or breaking.