HS 201 Exam 3 Questions with
Accurate Answers
When you think about the size and shape of soil particles and how they affect the
texture of a soil, which of the following statements is true? - answerSand is large and
round, clay is small and plate-like, and silt is in between in size and round
Pollution if soils (making them lose their productivity and ability to support plant life) can
occur in several ways. Which of the following is a major problem that we discussed? -
answerLeakage from underground storage tanks (homeowners and commercial gas
stations)
T/F: Perlite (white particles in soilless potting mixes) is a fertilizer in potting soil. -
answerFalse
"Hardening Off" is a term that described the process of slowly changing the environment
of a plant over time to better prepare it to live and thrive in a new/ different environment.
What is the official term of this process? - answerAcclimation
The native tree shown in class with pink precocious flowers that are edible (Yummy!!): -
answerCercis canadensis
Cation exchange capacity (CEC) - answerIs the ability of a soil to hold onto positively
charged ions (nutrients), preventing them from washing down lower into a soil profile
with irrigation water or rain
Which soil has the fastest water infiltration rate and why? - answerSandy because of the
large pores
Compaction - answerThe loss of pore space in a soil due to you stepping on soil and
NOT the sidewalk
Mineral soil is - answerWeathered rocks
Why is soil compaction a problem in landscape? - answerAll of the above
Sandy soils - answerAll of the above
What is the function of soil in growing a plant? - answerAll of the above
Cork is a type of bark from which tree? - answerQuercus
Accurate Answers
When you think about the size and shape of soil particles and how they affect the
texture of a soil, which of the following statements is true? - answerSand is large and
round, clay is small and plate-like, and silt is in between in size and round
Pollution if soils (making them lose their productivity and ability to support plant life) can
occur in several ways. Which of the following is a major problem that we discussed? -
answerLeakage from underground storage tanks (homeowners and commercial gas
stations)
T/F: Perlite (white particles in soilless potting mixes) is a fertilizer in potting soil. -
answerFalse
"Hardening Off" is a term that described the process of slowly changing the environment
of a plant over time to better prepare it to live and thrive in a new/ different environment.
What is the official term of this process? - answerAcclimation
The native tree shown in class with pink precocious flowers that are edible (Yummy!!): -
answerCercis canadensis
Cation exchange capacity (CEC) - answerIs the ability of a soil to hold onto positively
charged ions (nutrients), preventing them from washing down lower into a soil profile
with irrigation water or rain
Which soil has the fastest water infiltration rate and why? - answerSandy because of the
large pores
Compaction - answerThe loss of pore space in a soil due to you stepping on soil and
NOT the sidewalk
Mineral soil is - answerWeathered rocks
Why is soil compaction a problem in landscape? - answerAll of the above
Sandy soils - answerAll of the above
What is the function of soil in growing a plant? - answerAll of the above
Cork is a type of bark from which tree? - answerQuercus
