7228384
Descripción
Test por Leah Jones, actualizado hace más de 1 año
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Creado por Leah Jones
hace más de 7 años
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Pregunta 1
Pregunta
Most of the nutrients essential for growth are supplied to plants directly from the ___
Respuesta
-
Cosmic Radiation
-
Atmosphere
-
Humus
-
Rain Water
-
Soil Solution
Pregunta 2
Pregunta
Which of the following is (are) essential plant nutrients?
Respuesta
-
Sr
-
Al
-
Cu
-
Pb
-
All of the above
Pregunta 3
Pregunta
The lithosphere is made up of ___
Respuesta
-
Air
-
Rock
-
Plants and animals
-
Water
-
All of the above
Pregunta 4
Pregunta
The layers of contrasting material found when on digs a hole in the ground are called ___
Respuesta
-
Pedons
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Pseudoliths
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Horizons
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Soil structure
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Regoliths
Pregunta 5
Pregunta
A soil profile consists of (choose the best answer)
Respuesta
-
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
Pregunta 6
Pregunta
"Subsoil" is generally equivalent to which soil horizon?
Respuesta
-
A
-
O
-
C
-
H
Pregunta 7
Pregunta
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?
Respuesta
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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
-
25% water; 25% air
Pregunta 8
Pregunta
The amount of different sizes of mineral particles in a soil defines soil ___
Respuesta
-
Pore space
-
Profile
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Texture
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Solution
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Personality
Pregunta 9
Pregunta
The water in the soil typically differs from pure water because soil water ___
Respuesta
-
Contains mineral nutrients
-
Is restrained in its flow by attraction to particle surfaces
-
Contains organic compounds
-
All of the above
-
None of the above
Pregunta 10
Pregunta
Except for some kinds of food, modern industry has made human dependence on soils a thing of the past.
Respuesta
- True
- False
Pregunta 11
Pregunta
Most of the water in our rivers and lakes has come in contact with and been affected by soil.
Respuesta
- True
- False
Pregunta 12
Pregunta
Plants can be grown without any soil.
Respuesta
- True
- False
Pregunta 13
Pregunta
The mineral particles in soil consist of sand, silt, and clay.
Respuesta
- True
- False
Pregunta 14
Pregunta
Most, if not all, of the nutrient supply stored in a fertile soil is in forms readily available to plants.
Respuesta
- True
- False
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