Soil Formation

Question 1

What is the distinction between soil structure and soil texture?

Revolt · Accepted Answer

Soil texture is based on the amount of the different types of soil particles. It differs based on the proportion of sand, silt, and clay present in soil samples. Soil structure, on the other hand, has to do with the pattern of peds in soil. The soil structure determines the amount of space available in the soil and therefore the water absorption of a soil sample.

Question 2

Good soil tilth allows for _______.a.hard, rocky soilb.decreased plant lifec.decreased movement of aird.increased porosity

Revolt · Accepted Answer

D

Question 3

Which of the following properties of soil has the greatest effect on plant and microorganism growth?a.soil textureb.soil colorc.soil reactiond.soil consistency

Revolt · Accepted Answer

C

Question 4

Microorganisms in soil _______.a.are critical to soil healthb.carry out decompositionc.make nutrients available to plantsd.all of the above

Revolt · Accepted Answer

D

Question 5

How do organic farming practices relate to soil health?a.Organic farmers rely on soil health for good crop production.b.Organic farmers rely on the interaction between soil microbes and organic matter.c.Organic farmers avoid the use of pesticides and chemicals.d.all of the above

Question 6

How do organic farming practices relate to soil health?a.Organic farmers rely on soil health for good crop production.b.Organic farmers rely on the interaction between soil microbes and organic matter.c.Organic farmers avoid the use of pesticides and chemicals.d.all of the above

Revolt · Accepted Answer

D

Question 7

The separation of soil into distinct layers is _______.a.horizonationb.soil reactionc.soil structured.soil color

Revolt · Accepted Answer

A

Question 8

Good soil tilth allows for _______.a.hard, rocky soilb.decreased plant lifec.decreased movement of aird.increased porosity

Question 9

Explain how plant life is benefited when microorganisms release carbon dioxide into the soil.

Revolt · Accepted Answer

When microorganisms release carbon dioxide into the soil, the acidity of water surrounding soil particles is increased. This increase in acidity allows for rock present in soil to be broken down, releasing minerals into the soil. These minerals are then available for use by plant life.

Question 10

What soil properties are influenced by microorganism activity?

Revolt · Accepted Answer

Microorganism activity affects soil acidity and the amount of organic matter in soil. It also affects the nutrient and mineral levels in soil as well as soil structure.

Soil Formation Answers

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