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3 years ago

What are the causes of soil compaction?

2 answers:

8 0

It causes soil pore spaces to become smaller, and it reduces water infiltration rate into soil, and decreases the rate that water will penetrate into the soil root zone and subsoil.

Marianna [84]3 years ago

8 0

Answer:

Factors which lead to or favour soil compaction are

- use of heavy vehicles, equipment on field and

- type and condition of soil also plays an important role in causing soil compaction.

Explanation:

The causes of soil compaction are as follows –

a) Use of heavy machines on field – Use of heavy axle machines with weight exceeding 10 tons causes compaction of soil to greater depth.

b) Frequent and early planting also causes soil compaction due to continuous weight on soils.

c) Soil type - Soils with low level of organic matter are more susceptible to compaction as they do not have gravels (aggregate) to resist the compaction forces.

d) Soil condition – Wet clay soils are easily compactible as compared to sandy soil.

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A rock called shale is formed from the skeletons of ancient coral animals.

Alina [70]

Thank you for the information. But what is the question?
Shale is a fine-grained, clastic sedimentary rock composed of mud that is a mix of flakes of clay minerals and tiny fragments (silt-sized particles) of other minerals, especially quartz and calcite. The ratio of clay to other minerals is variable.
so the statement is FALSE

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3 years ago

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In the alveolus pictured above, a disease or

Inessa [10]

<h2><u>Full Question:</u></h2>

In the alveolus pictured above, a disease or injury to which structures would reduce the ability of oxygen to diffuse from the alveolar space to the capillary?

A. A and B

B. B and C

C. B and D

D. A and D

<h2><u>Answer:</u></h2>

The correct answer is option D.

<h3><u>Explanation:</u></h3>

Alveoli is defined as the unicellular thickened sac like structure of lungs which helps in exchange of gases in lungs. The exchange membrane of lungs comprise of three structures -

A. The epithelium cells of Alveoli,

B. The basement membrane of alveolar epithelium,

C. The endothelial layer of blood capillary.

The red blood cells described here won't cause any problems to the diffusion of gases from alveolar cavity to blood. The structures mentioned here as the type 2 cells of Alveoli which secrete lecithin, a surfactant which releases the surface tension of Alveoli. This compound prevents the Alveoli from collapsing and helps in diffusion of gases. The other structure mentioned here as D are the alveolar epithelium which is the unicellular thickened membrane of Alveoli, helping in gaseous exchange.

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Set up a mating between an Hfr strain and an F- (ade- his- bio-) strain and detect bio+ recombinant. Which of the following mati

shtirl [24]

Answer:

Explanation:

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3 years ago

Where would an earthquake's epicenter be in this diagram?

aniked [119]

Answer:

The answer is A: On Earth's surface, directly above where the fault slippage begins

Hope this helps :)

Explanation:

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maxonik [38]

Answer:

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3 years ago