Nres 251 exam 2024 - Study guides, Class notes & Summaries
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NRES 251 EXAM 4 - 2024
- Exam (elaborations) • 8 pages • 2024
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NRES 251 EXAM 4 - 2024 ...
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NRES 251 - Exam 2| Questions with 100% Solutions| Verified| Latest Update
- Exam (elaborations) • 11 pages • 2024
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Why does capillarity occur in soils? - Ans adhesion, cohesion, surface tension 
A soil with capillarity fringe of 15 cm might have a mean pore radius of what? - Ans 0.01 cm = h 
= 0.15/r 
What are the components of soil water potential? - Ans total water potential, gravitational 
potential, matric potential, osmotic potential, hydrostatic potential 
Under what condition would volumetric equal mass water content? - Ans soil bulk density = 1g 
cm-3 
What soil texture has the greatest amount of pla...
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NRES 251 - Exam 1| Questions with 100% Solutions| Verified| Latest Update
- Exam (elaborations) • 10 pages • 2024
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Ability of soil to sorb and hold onto cations long enough for plant uptake - Ans CEC 
Fraction of soil that develops slight negative charge (clay and OM) - Ans Colloidal 
Isomorphic substitution is seen only in... - Ans Clay 
Isomorphic substitution is the result of... - Ans Weathering 
Isomorphic substitution creates a {permanent/temporary} change - Ans Permanent 
_____ ___________ is defined a the negative charge in perimeter oxygen atoms in Fe/Al oxides 
- Ans Edge charge
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