ANSWERS|LATEST !!!!2026|GRADED A+| (EXAM
Organic layer - ANSWER 0 Horizon, an unaltered soil, thin layer of decomposing
organic matter
Loam - ANSWER A mix of three different particle sizes and is often considered an
ideal soil texture because of the favorable characteristics for plant growth.
Not made up of equal mix of sand, silt, clay. Contains less clay
Topsoil - ANSWER commonly known as the uppermost layers (O,A,E, and sometimes
the upperpart of B horizon)
C Horizon - ANSWER Deepest Soil layer composed of partially weathered parent
material. Soil in this horizon is continually forming.
A Horizon - ANSWER Contains most of the fine absorbing roots of trees and is very
biologically active. Rich in organic matter.
E Horizon - ANSWER Between the A and B Horizon, lacks the organic matter as in A,
has lighter color due to this.
Absorbing Roots - ANSWER Roots found in the upper 6-10 inches of soil
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, Roots - ANSWER Few_____ grow deeper than 3 to 4 ft.
Soil Structure - ANSWER Shape, size, strength, and arrangement of soil aggregates
form ____.
Micropores - ANSWER Soil pores that retain water and are the source of available
water to plants between rainfalls.
Macropores - ANSWER Soil pores too large to hold water against the force of gravity
and become filled with air as water drains from the soil.
Bulk Density - ANSWER Mass of dried soil per unit of undisturbed soil volume. Can
be used to assess whether adequate pore space exists.
Sand - ANSWER Soils with a high percentage of _________ are less prone to
compaction.
Clay - ANSWER Soils with a high percentage of ______ are easily compacted.
Ph - ANSWER The measure of the acidity or alkalinity of soil.
Ph 7 - ANSWER ph neutrality
Ph 0-6.5 - ANSWER Acidic
Ph 7.5-14 - ANSWER Alkaline
Ph 6.0 to 6.5 - ANSWER Generally favorable ph for most trees
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Organic layer - ANSWER 0 Horizon, an unaltered soil, thin layer of decomposing
organic matter
Loam - ANSWER A mix of three different particle sizes and is often considered an
ideal soil texture because of the favorable characteristics for plant growth.
Not made up of equal mix of sand, silt, clay. Contains less clay
Topsoil - ANSWER commonly known as the uppermost layers (O,A,E, and sometimes
the upperpart of B horizon)
C Horizon - ANSWER Deepest Soil layer composed of partially weathered parent
material. Soil in this horizon is continually forming.
A Horizon - ANSWER Contains most of the fine absorbing roots of trees and is very
biologically active. Rich in organic matter.
E Horizon - ANSWER Between the A and B Horizon, lacks the organic matter as in A,
has lighter color due to this.
Absorbing Roots - ANSWER Roots found in the upper 6-10 inches of soil
1
, Roots - ANSWER Few_____ grow deeper than 3 to 4 ft.
Soil Structure - ANSWER Shape, size, strength, and arrangement of soil aggregates
form ____.
Micropores - ANSWER Soil pores that retain water and are the source of available
water to plants between rainfalls.
Macropores - ANSWER Soil pores too large to hold water against the force of gravity
and become filled with air as water drains from the soil.
Bulk Density - ANSWER Mass of dried soil per unit of undisturbed soil volume. Can
be used to assess whether adequate pore space exists.
Sand - ANSWER Soils with a high percentage of _________ are less prone to
compaction.
Clay - ANSWER Soils with a high percentage of ______ are easily compacted.
Ph - ANSWER The measure of the acidity or alkalinity of soil.
Ph 7 - ANSWER ph neutrality
Ph 0-6.5 - ANSWER Acidic
Ph 7.5-14 - ANSWER Alkaline
Ph 6.0 to 6.5 - ANSWER Generally favorable ph for most trees
2
