Multiple Choice
Identify the
choice that best completes the statement or answers the question.
|
|
|
1.
|
In Ohio there are more than
__________ significant and unique combinations of soil conditions.
|
|
|
2.
|
Soils with slopes greater than
________ percent have severe limitations for such uses as buildings with basements, septic tank
absorption fields, driveways, and local roads.
|
|
|
3.
|
A landform that often appears
as a step-like surface or bench-like surface feature between the higher uplands and lower flood
plains is called ________.
a. | depression | b. | upland | c. | terrace | d. | hill slope |
|
|
|
4.
|
The soils on _________ are very
young in age and lack the features that are developed in layers (horizons) of older
soils.
a. | flood
plains | b. | swales | c. | uplands | d. | terraces |
|
|
|
5.
|
Slope is the _______ rise and
fall of land in a measured _______ distance and is measured in percent (%).
a. | vertical & vertical
| c. | horizontal &
vertical | b. | horizontal & horizontal | d. | vertical & horizontal |
|
|
|
6.
|
Surface soil texture refers to
the texture of the normal plow layer or the upper _____ inches of topsoil.
|
|
|
7.
|
________ is irregular spots of
different colors that vary in number and size and generally indicate poor aeration and impeded
drainage.
a. | ped | b. | matrix | c. | mottling | d. | pore |
|
|
|
8.
|
_______ is material such as
sand, silt, or clay deposited on land by streams.
a. | effluent
| b. | macropore | c. | subsidence | d. | alluvium |
|
|
|
9.
|
At least _______ of soil
material is necessary between the bottom of the trenches and bedrock for adequate filtering of
effluent.
a. | 1 foot | b. | 2 feet | c. | 3 foot | d. | 4 foot |
|
|
|
10.
|
A _______ is a firm subsoil
horizon that is hard and brittle when dry and somewhat brittle when moist.
a. | fragipan | b. | mottling | c. | glacial | d. | parent material |
|
|
|
11.
|
In general absorption fields
must not be located closer than ________ feet to water well.
|
|
|
12.
|
Slight depressions, sometimes
swampy areas found in generally level land is called a ________.
a. |
outwash | b. | flat | c. | swale | d. | dune |
|
|
|
13.
|
____________ is water
transpired by vegetation plus water evaporated from the soil.
a. | available
capacity | b. | evapotranspiration | c. | effluent | d. | ground moraine |
|
|
|
14.
|
Slopes greater than _________
percent create erosion hazards, that if neglected, can cause driveways to wash out or becomes covered
with debris.
|
|
|
15.
|
Settling of organic soils,
soils containing semifluid layers, or materials that are dissolved in solution, is
called.
a. | moraine | b. | subsidence | c. | solom | d. | effluent |
|