Weathering, Mass movement, Limestone

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

The formation of stalactites and stalagmites in a cave as water mixed with carbon dioxide creates carbonic acid, which dissolves away the limestone, is an example of:

• mechanical weathering
• chemical weathering

The slowest type of mass movement is called a _____________________.

• avalanche

• soil creep

• landslide

• mudflow

What is regolith?

• Steepness of the slope

• Loose earth material produced by weathering and erosion

• Plants, grass, shrubs

• Series of steps formed as a result of soil creep

Gradient, water content, animals, vegetation and _____________ influence mass movement.

• Steepness of slope

• Plants and shrubs

• Human activity

• Terracettes

Surface features found in a karst landscape include (3 answers)

• Stalactite

• Clints

• Grikes

• Cave

• Swallow hole

How do plants weather rocks?

• Plants don't weather rocks.
• When roots grow into cracks of rocks and expand the rock breaks.
• When the plant moves water from the roots to the leaves, the rock breaks.

Acid rain is most likely to cause...

• deposition
• glaciers to move
• chemical weathering
• mechanical weathering

Which diagram represents mechanical weathering?

• G
• F
• H
• J

Which type of climate would cause the greatest rate of weathering?

• Cold and dry
• Cold and humid (wet)
• Warm and humid (wet)
• Warm and dry