Questions and CORRECT Answers
Biologically active and heterogenous part of earth, formed from plant materials or rocks, and
unconsolidated variable layer of mineral and organic material that covers the surface of earth. -
CORRECT ANSWER - Soil is:
Soil is a source of most plant nutrients. - CORRECT ANSWER - Which of the following
is a function of soil?
Climate, vegetation, time, parent material and topography - CORRECT ANSWER - The
five soil forming factors are:
Profile - CORRECT ANSWER - A vertical cross-section of a soil is:
50% - CORRECT ANSWER - The expected volume occupied by air for a completely dry
mineral soil is about:
Arrangement of soil particles - CORRECT ANSWER - Soil structure refers to:
sizes - CORRECT ANSWER - A texture describes the ____________ of particles in a
soil.
Air - CORRECT ANSWER - Plants get an essential macro element carbon from:
Horizon - CORRECT ANSWER - A soil __________________ is a layer of soil that
differs in properties and characteristics from adjacent layers and is approximately parallel to the
surface.
D - CORRECT ANSWER - What is an example that is not a soil master horizon?
, A - CORRECT ANSWER - A topsoil is usually equivalent to _______________ horizon.
B - CORRECT ANSWER - A subsoil is usually equivalent to ______________ horizon.
Stores and displays geographically referenced data and produce information. - CORRECT
ANSWER - GIS:
12 - CORRECT ANSWER - According to the USDA soil classification, the number of soil
order is:
Miami - CORRECT ANSWER - The series name for a soil named Miami, fine, mixed,
Typic argiaquolls is:
ultisols - CORRECT ANSWER - Which of the following soil order would you expect to
be dominant in Alabama?
45% - CORRECT ANSWER - If a given soil has 30% sand and 25% silt, the percentage of
clay is:
the amount of water soil retains when it has been fully wetted and allowed to drain freely -
CORRECT ANSWER - What is field capacity of a soil?
nonpoint source pollution - CORRECT ANSWER - Water pollution source that originates
from diffused source is known as:
Double - CORRECT ANSWER - If a temperature of a soil increases from 10 to 20 degrees
Celsius, microbial activity will:
Increases - CORRECT ANSWER - As soil pH increases, the CEC of the soil in general: