Soil

Soil

University

8 Qs

quiz-placeholder

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Soil

Soil

Assessment

Quiz

Science

University

Easy

Created by

T N

Used 1+ times

FREE Resource

8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 sec • 1 pt

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

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