Concept #5 Quiz

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Chapter 6

Concept #5 Quiz

Choose the best possible answer to the following questions about Key Concept 5 "Soil and soil-forming processes."

This activity contains 10 questions.

What are the most important controls on soil formation?

climate, temperature, water, topographyparent material, time, climate, plants and animals, topography parent material, climate, topography, exfoliation plants and animals, climate, dissolution

Which best describes the composition of soil?

About half mineral matter, and the other half is water and air. About half air, and the other half mineral matter and water. About half water, and the other half mineral matter and air.About half organic matter, and the other half mineral matter and water.

Soil is one of the Earth’s most important resources. Why?

Soil is the interface between the biosphere and the atmosphere.It is the connection between the living world and rocks.It is the mining resource that supplies the population with water. Soil is the connection between the solid Earth and the atmosphere.

Match the appropriate label to the best explanation of that part of the figure.

The letters A through C appear on an image associated with this question.

This question presents 3 items numbered 4.1 through 4.3. Each item is presented with a pulldown menu containing the letters A through C. For each item below, use the pull-down menu to select the letter that labels the correct part of the image.

4.1 soil with the lesser amount of organic material
4.2 calcium-carbonate cement (caliche)
4.3 most advanced soil production

What is the way in which the nature of the “parent material” influences soil production? Choose all that apply.

Soils cannot be produced in some types of material.The type of material affects the rate of weathering and thus the rate of soil production. Unconsolidated material weathers more slowly than does consolidated rock. Unconsolidated material weathers faster than consolidated rock.

Which is true about soils? Choose all that apply.

Different soils are produced from the same starting material. Different soils indicate that different starting materials weathered into them. Similar soils are produced from different starting materials. Similar soils are always formed from the same starting material.

What is different about “residual soil” and “transportation soil”?

Residual soil is produced from sediment, whereas transportation soil is produced from rock. Residual soil is produced from the breakdown of rocks, whereas transportation soil is produced from sediment. Residual soil is produced from rock, whereas transportation soil is produced from unconsolidated rock. Residual soil is produced from unconsolidated rock, whereas transportation soil is produced from rock.

Which is the most influential control on soil formation and why?

plants and animals – earthworms mix the soil water – it is the primary filter of nutrients in the soil formation process unconsolidated rock – more surface area produces more reaction sites for soil productionclimate – temperature and precipitation are important to soil formation

Why would the presence of earthworms aid soil production? Choose all that apply.

Earthworms cause the area to become warmer and moist, thus producing soil. Earthworms effectively mix organic and inorganic matter. Earthworms add water to the soil formation site.Earthworms make tunnels for water to flow more easily.

Why does slope influence soil formation?

Flat areas have poor drainage, but soil is thick.all of these. Slope orientation can influence how much sunlight shines over the area.Steep slopes do not allow much water to infiltrate so soil is thin.

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