What Are the Main Characteristics of Soil Above a Limestone

question 28

Multiple Choice

What are the main characteristics of soil above a limestone cavern that leads to the formation of a cover collapse sinkhole?

• A) thin enough that it can trickle through limestone cracks into a cavern below
• B) sandy and loose enough that it can trickle down into cracks in limestone
• C) coarse-enough grains that surface water can percolate down into cracks above a limestone cavern
• D) fairly well cemented so it can maintain the roof of a cavern
• E) thick, clay-rich, and cohesive enough to develop a large cavern before it collapses

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Definitions:

Precipitation

Any form of water, such as rain, snow, sleet, or hail, that falls from the atmosphere to the Earth's surface.

Taiga

A biome characterized by coniferous forests, spanning across northern regions, and having cold temperatures and moderate precipitation.

Mediterranean Region

A geographical area surrounding the Mediterranean Sea, characterized by a climate with hot, dry summers and cool, wet winters, and noted for its unique flora and fauna.

Climates

The long-term patterns and averages of temperature, humidity, atmospheric pressure, wind, precipitation, and other meteorological elements in a particular region.