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Beschreibung
Quiz von Leah Jones, aktualisiert more than 1 year ago
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Erstellt von Leah Jones
vor mehr als 7 Jahre
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Frage 1
Frage
Most of the nutrients essential for growth are supplied to plants directly from the ___
Antworten
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Cosmic Radiation
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Atmosphere
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Humus
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Rain Water
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Soil Solution
Frage 2
Frage
Which of the following is (are) essential plant nutrients?
Antworten
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Sr
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Al
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Cu
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Pb
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All of the above
Frage 3
Frage
The lithosphere is made up of ___
Antworten
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Air
-
Rock
-
Plants and animals
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Water
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All of the above
Frage 4
Frage
The layers of contrasting material found when on digs a hole in the ground are called ___
Antworten
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Pedons
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Pseudoliths
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Horizons
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Soil structure
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Regoliths
Frage 5
Frage
A soil profile consists of (choose the best answer)
Antworten
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The sum of chemical and physical data known about a soil
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The way a soil "feels"
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The set of layers in a vertical cross-section of the soil
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The general outline of a soil or groups of soil when viewed from the side
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The spatial boundaries of a particular soil
Frage 6
Frage
"Subsoil" is generally equivalent to which soil horizon?
Antworten
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A
-
O
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C
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H
Frage 7
Frage
In a typical mineral soil in optimal condition for plant growth, approximately what percentage of the pore space would be filled with water and what percentage filled with air?
Antworten
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10% water; 90% air
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90% water; 10% air
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50% water; 50% air
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25% water; 75% air
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25% water; 25% air
Frage 8
Frage
The amount of different sizes of mineral particles in a soil defines soil ___
Antworten
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Pore space
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Profile
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Texture
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Solution
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Personality
Frage 9
Frage
The water in the soil typically differs from pure water because soil water ___
Antworten
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Contains mineral nutrients
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Is restrained in its flow by attraction to particle surfaces
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Contains organic compounds
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All of the above
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None of the above
Frage 10
Frage
Except for some kinds of food, modern industry has made human dependence on soils a thing of the past.
Antworten
- True
- False
Frage 11
Frage
Most of the water in our rivers and lakes has come in contact with and been affected by soil.
Antworten
- True
- False
Frage 12
Frage
Plants can be grown without any soil.
Antworten
- True
- False
Frage 13
Frage
The mineral particles in soil consist of sand, silt, and clay.
Antworten
- True
- False
Frage 14
Frage
Most, if not all, of the nutrient supply stored in a fertile soil is in forms readily available to plants.
Antworten
- True
- False
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