Which soil textural class has the smallest average pore size but the greatest total volume of pore space?
Soil

Quiz
•
Science
•
University
•
Easy
T N
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Clay
Permeability
Water Holding Capacity
Loam
Sand
2.
MULTIPLE SELECT QUESTION
5 sec • 1 pt
What is in soil pore? Select all correct answers
50% filled with air (VOCs, oxygen, other gases)
50% filled with water (dissolved nutrients)
Soil aggregates
Soil peds
3.
MULTIPLE SELECT QUESTION
5 sec • 1 pt
What are some basic units of clay or mineral in soils? Select all correct answers
Kaolinite
Silicon tetrahedron
Smectite
Vermiculite
Alumina octahedron
4.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Fill in the blank: Clay carries some _____ _____ charged and these charges do not change with pH changes
isomorphous substitution
permanently negative
hydrated cation
2:1 mineral
5.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Cation Exchange Capacity (CEC) refers to:
A measure of soil ability to hold cations
A measure of soil ability to hold anions
The exchange of negative ions between soil and soil water
The removal of positively charged ions from a soil
The ability of a soil to attract, retain and release clay particles
6.
MULTIPLE SELECT QUESTION
5 sec • 1 pt
Select all types of water in soil
Capillary water
Hygroscopic water
Gravitational water
Field capacity
Wilting point
7.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
The upper unsaturated zone in the ground is termed the
saturated zone
phreatic zone
supersaturated zone
vadose zone
8.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Water in vadose zone is essentially _______ due to the high water potential
Mobile
Immobile
Saturated
Unsaturated
Percolating
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