Soil Structure & Systems - 无忧得胜-网上国际课程 (5edu.win)

1#

State which of the followi2g(dtcm nod5, :w8e hgng is not a type of soil particle.

A. Loam

B. Clay

C. Sand

D. Silt

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2#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

List the soil particles in orde;,crop uvhg8li .+p+w r from smallest to largest.

A. Clay - silt - sand

B. Clay - sand - silt

C. Sand - silt - clay

D. Sand - clay - silt

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3#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Identify the statement that best describe 3/oqoc7eh3evs leaching.

A. Minerals move horizontally through the soil.

B. Leaf material decomposes and becomes part of the soil.

C. Organic material breaks down and returns minerals to the soil.

D. Water dissolves minerals and transfers them down.

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4#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

List which of the following z w sd34o;i0voq5;hix euox,br6 -n)o are components of soil.

I.
Eroded rock
II.
Remains of organisms
III.
Humus
IV.
Water

A. I and III only

B. II, III, and IV only

C. I, III, and IV only

D. I, II, III, and IV

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5#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

State the term for a soil sample that shows the layers in the soil.

A. Soil horizon

B. Soil profile

C. Soil texture

D. Soil particles

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6#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Figure: Tree roots on a rock f6x6 +c eyvx9(wk.zh4nn dlhr-ace

Deduce which of the following processes is best shown in this image.

A. Biological weathering

B. Physical weathering

C. Chemical weathering

D. Options A and B both

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7#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Weathering is a process where rock is broken down into smaller pax2k; 3obi1k ljrticles. Identify which of the processes below are involved in soil formation jkxb;3ki21lo .

I.
Biological weathering
II.
Chemical weathering
III.
Physical weathering

A. I, II and III

B. II and III only

C. I and II only

D. III only

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8#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Figure: Typical soil profile dik2 )bc e*gp5kbagram

In the figure, identify what the top or “O” layer is often referred to as:

A. The Outer Layer

B. The Oxygen Layer

C. The Organic Layer

D. The Zero layer

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9#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Figure: Soil texture trianglebop )yb 86cd5tqf (n*a

Classify a soil sample that is made up of 60% clay, 20% silt and 20% sand.

A. Silty clay

B. Clay

C. Clay loam

D. Sandy clay

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10#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Figure: Soil texture tr0arb/. k + ;xjro6rmzriangle

Use the figure to determine the type of soil that would be 15% clay, 5% sand, and 80% silt.

A. Silt

B. Clay

C. Silty clay loam

D. Silty loam

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11#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Figure: Soil texture triva i*w(i5.,,4tp k4 pi/ z:uhvlptvzkangle

List the three soil types that we could have if our soil sample has 60% sand in it.

A. Type 1 is sandy loam,Type 2 is loam,Type 3 is sandy clay

B. Type 1 is sandy loam,Type 2 is loam,Type 3 is clay loam

C. Type 1 is sandy loam,Type 2 is sandy clay loam,Type 3 is sandy loam

D. Type 1 is sandy loam,Type 2 is clay loam,Type 3 is sandy silt loam

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12#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Figure: Soil texture wiw iry-3z6o aj,td0 ;triangle

Classify a soil sample that is made up of 35% clay, 25% silt and 40% sand.

A. Sandy loam

B. Sandy clay loam

C. Clay loam

D. Loam

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13#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Figure: Typical soil profile diagram*:jslu wt;fyim i) opf-x,t3)p 3htg3

Identify which of the following is not a correct match of an above layer and it’s general characteristics.

A. Layer A is Surface Soil: Layer of mineral soil with most organic matter accumulation and soil life.

B. Layer B is Zone of eluviation where mineral leaching is most pronounced

C. Layer C is partially altered parent material

D. Layer D is Bedrock: Mostly unweathered parent material

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本习题练习题目来源于无忧得胜-网上国际课程 (https://5edu.win)，学生可刷题练习，扫右侧二维码或加微信skysky1258，获取更多资料
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14#

单选题 ( 1.0 分) 切至整卷模式搜藏此题

Identify which of the following are examples of transfs( h7v8bocn g() + vw5dqacvhqt3i)g;er processes involved in the formav ov(8nc5chg7hq 3ga))wdvs(itq+b; tion of soil.

I.
Leaching of minerals dissolved in water
II.
Biological mixing such as movement through earthworms
III.
The chemical weathering of bedrock into smaller fragments

A. I only

B. I and II only

C. II and III only

D. I, II and III

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