Exam 8: Subsidence and Soils

Areas with extensive Limestone formations near the surface are particularly vulnerable to sinkholes and caves.

Which of the following is NOT a readily dissolvable rock?

Subsidence and soil volume changes are rare and don't cause very much damage in the U.S. due to advanced engineering methods.

Which of the following does NOT usually affect the development of most soil?

Explain the possible cause of subsidence in areas of New Orleans. Explain how you arrived at your answer.

In a region susceptible to sinkhole formation, the most likely times for collapse will be

Where does the majority of soil originate from?

The Mississippi Delta has experienced major subsidence over the past fifty years and that has resulted in a huge increase in the amount of wetlands.

Explain the possible cause of subsidence in areas of Florida. Explain how you arrived at your answer.

What does "restricting deltaic sedimentation" mean? Explain how it relates to subsidence.

Explain the possible cause of subsidence in areas of Texas. Explain how you arrived at your answer.

Damage from soil volume change in the U.S. commonly costs more annually than all other natural disasters combined.

Expansive soils are relatively rare and cause little if any damage to structures.

There is little that can be done to prevent damage from expansive soils.

The soil classification scheme created by soil scientists is based solely on the abundance of sand vs. clay.

How does land subsidence contribute to water pollution?

Salt mines can be places for land subsidence because salt can be dissolved in water, leaving behind cavities for water to pool.

Which of the following does NOT cause ground subsidence?

What are two causes of the subsidence of New Orleans?

Humans have contributed to the thawing of permafrost through poor building practices.