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Which material/layer is the most porous/permeable?

Which material/layer is the most porous/permeable?

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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**Check for Understanding** **Which material/layer is the most porous/permeable?** **Permeability** *In the image, four different materials are compared for their permeability: Gravel, Sand, Silt, and Clay.* **Graph Explanation:** 1. **Gravel:** - Water reaches the 1-meter mark in 2 minutes. - This indicates a high permeability level since water infiltrates quickly. 2. **Sand:** - Water reaches the 1-meter mark in 30 minutes. - This shows moderate permeability compared to gravel. 3. **Silt:** - Water reaches the 1-meter mark in 2 hours. - This indicates lower permeability than gravel and sand. 4. **Clay:** - Water reaches the 1-meter mark in 2 days. - This shows the lowest permeability among the four materials, as water infiltrates very slowly. **Summary:** Gravel is the most porous and permeable material, allowing water to pass through it quickly, followed by sand, silt, and, finally, clay, which is the least permeable.
Transcribed Image Text:**Check for Understanding** **Which material/layer is the most porous/permeable?** **Permeability** *In the image, four different materials are compared for their permeability: Gravel, Sand, Silt, and Clay.* **Graph Explanation:** 1. **Gravel:** - Water reaches the 1-meter mark in 2 minutes. - This indicates a high permeability level since water infiltrates quickly. 2. **Sand:** - Water reaches the 1-meter mark in 30 minutes. - This shows moderate permeability compared to gravel. 3. **Silt:** - Water reaches the 1-meter mark in 2 hours. - This indicates lower permeability than gravel and sand. 4. **Clay:** - Water reaches the 1-meter mark in 2 days. - This shows the lowest permeability among the four materials, as water infiltrates very slowly. **Summary:** Gravel is the most porous and permeable material, allowing water to pass through it quickly, followed by sand, silt, and, finally, clay, which is the least permeable.
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