Soil Structure & Systems - 题库网 (tiku.one)

1#

State which of the following is not a twq9fjoqg5 ,3/8asd;dx jx4 lzype 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 order from smallest to layv s a36kj*j-j d,xg9xrgest.

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 b)z9awv9 es( jwi+mm9lest describes 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 are compos -oau curokjlr(+ 6/2nents 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 roi-ug z gi yh wl/irr8.3szj97k0zk- e;f3a5 zgck face

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 particlerthij ; 0h(c6(i volx4x51lfb)(hzfas. Identify which o5i hlz1xv 0raxf ioh() 6 (b4ctf(j;hlf the processes below are involved in soil formation.

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 8qdka*ep. 4g1ay)7hb wrp0j+ hyd(u uprofile diagram

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 triangle5zvfdik1 +vfjs .3ok (uab *mhgs-v) :

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 1v cmm:oo;-ovje 0it) triangle

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 triangleo l5c- -fpj dou+..xgt

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 triaq vps1ugn)y ykm9mra37yv2.4 ngle

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 prof005(mvk4yg bkoju dq1 ile diagram

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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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 transfer processed(fuyi1wi33jxw*juj jbu19 8 s involved in the formatio33jx wuy8*fijui 9b dju 1j1w(n 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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