SCI CHP 15: Part 6 - Sinkholes and Caverns

Why is ground water an important consideration when thinking about the stability of land?

• 1. Ground water nourishes soil, and the soil will die without it.

• Ground water acts as a support system for the ground.

• 1. Ground water isn't relevant to the stability of land.

• 1. Ground water needs to removed quickly so that it doesn't cause instability by dissolving sediments.

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NGSS.MS-ESS2-1

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What is subsidence?

• Subsidence is the process of soil erosion by water.
• Subsidence is the gradual sinking or settling of the ground's surface.
• Subsidence is the sudden collapse of a building structure.
• Subsidence refers to the rise of the ground's surface due to volcanic activity.

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NGSS.MS-ESS2-2

Which of the following is true about caverns and sinkholes?

• 1. A cavern is a type of sinkhole

• 1. Caverns are also known as aquifers, while sinkholes are not

• Sinkholes are holes in the ground's surface, while caverns are large open spaces underground

• 1. Caverns are holes in the ground's surface, while sinkholes are large open spaces underground

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NGSS.MS-ESS2-2

What is the name for an underground water reservoir?

• Well
• Spring
• Aquifer
• Pond

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Which is NOT true about stalactites?

• 1. They are found in both caves and caverns.

• 1. They form from water dripping onto the ground and piling up like a cone.

• 1. They form from water dripping onto the ground and piling up like a cone.

• 1. They form from water dripping through the ceiling of a cavern or cave.

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NGSS.MS-ESS2-1

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