ISA - Arborist Certification Test - Chapter 3
UPDATED ACTUAL Exam Questions and
CORRECT Answers
o, a - CORRECT ANSWER - The majority of fine, absrobing roots of a tree are in the __
and __ horizons.
compact, pore space - CORRECT ANSWER - Driving vehicles across wet soil will _____
the soil and destroy soil _____ _____.
Buffering Capacity - CORRECT ANSWER - _____ ______ is the soil property that resists
changes to the pH.
True - CORRECT ANSWER - True/False - Negatively charged clay particles hold cations
near their surface.
soil structure - CORRECT ANSWER - ______ _______ modifies the effects of soil
texture as the soil particles form clumps or aggregates.
acidic, neutral, alkaline - CORRECT ANSWER - On the pH scale, less that 7 is ____, 7 is
____ and more that 7 is _____.
100 - CORRECT ANSWER - A pH of 5 is ____ times more acidic than a pH of 7
leaching - CORRECT ANSWER - the process in which ions of essential element wash
down through the soil profile and are lost is called ______.
cations - CORRECT ANSWER - Many essential elements are dissolved in soil water in
the form of positively charged particles called _____.
UPDATED ACTUAL Exam Questions and
CORRECT Answers
o, a - CORRECT ANSWER - The majority of fine, absrobing roots of a tree are in the __
and __ horizons.
compact, pore space - CORRECT ANSWER - Driving vehicles across wet soil will _____
the soil and destroy soil _____ _____.
Buffering Capacity - CORRECT ANSWER - _____ ______ is the soil property that resists
changes to the pH.
True - CORRECT ANSWER - True/False - Negatively charged clay particles hold cations
near their surface.
soil structure - CORRECT ANSWER - ______ _______ modifies the effects of soil
texture as the soil particles form clumps or aggregates.
acidic, neutral, alkaline - CORRECT ANSWER - On the pH scale, less that 7 is ____, 7 is
____ and more that 7 is _____.
100 - CORRECT ANSWER - A pH of 5 is ____ times more acidic than a pH of 7
leaching - CORRECT ANSWER - the process in which ions of essential element wash
down through the soil profile and are lost is called ______.
cations - CORRECT ANSWER - Many essential elements are dissolved in soil water in
the form of positively charged particles called _____.
