Question 1

Identify the major components of soil and discuss the role of each in the support of living organisms.

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Question 2

This irrigated soil in Colorado can no longer be used for agriculture because of the accumulation of

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Question 3

The Conservation Reserve Program (CRP)is a voluntary subsidy program that pays farmers to stop producing crops on highly erodible farmland. Instead farmers are required to:

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The Conservation Reserve Program (CRP) pays farmers to stop producing crops on highly erodible land and instead requires them to plant native grasses or trees and "retire" the land from further agricultural use for a period of 10 to 15 years. This helps to prevent soil erosion and improve environmental health.

Question 4

Contour plowing, strip cropping, and terracing are soil conservation methods that are BEST suited to which of the following situations?

Accepted Answer

Contour plowing, strip cropping, and terracing are specifically designed to prevent soil erosion on sloped land. These methods help to slow water runoff and capture soil, making them most effective for soils located on slopes.

Question 5

What percentage of the earth's land area is suitable for agriculture?

Accepted Answer

Approximately 11% of the earth's land area is suitable for agriculture, which includes arable land and land used for permanent crops.

Question 6

The figure (A)below shows a generalized soil profile. Explain what a soil profile is then apply this information to compare and contrast the soil profile in the two photographs (B and C)below.  A  B  C

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Question 7

What methods of cultivation are shown in the photographs below? Describe these methods and explain their benefits.  A  B

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Question 8

What is a mineral? Compare and contrast the properties and uses of metallic and nonmetallic minerals. Include in your discussion three examples of metallic minerals and three examples of nonmetallic minerals.

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Question 9

Besides being a precious metal used to make jewelry, gold is also considered a very expensive metal, environmentally speaking. What makes gold so environmentally costly?

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Question 10

The two photos below show two different ways that mining contaminates the environment. Compare and contrast the specific ways that mining affects the environment in each case.  A  B

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Question 11

The TWO main reasons that certain areas are not suitable for agriculture are:

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Soil being too dry and having chemical problems like salinization are significant factors that make areas unsuitable for agriculture, as they affect water availability and soil fertility.

Question 12

What is humus? Briefly explain why it is important for the soil.

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Question 13

What are the soil problems depicted in the photographs below. Describe the problems and explain how human activity contributes to causing/exacerbating these problems. Why are the problems depicted of serious concern?  A  B

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Question 14

What is a rock? Describe the different types of rocks to be found on the Earth's surface and explain how each type is formed.

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Question 15

The figure below shows the diversity of life in fertile soil. Using the figure as a guide, explain the relationship between soil and the organisms that live in and on it.

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Question 16

What form of soil conservation is shown in these photographs?  A  B

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Question 17

In the United States, agricultural practices have been modified in support of soil conservation. What are the specific problems with conventional agriculture practices? What policies have been implemented to improve soil conservation?

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Question 18

What would be a good way to prevent further soil erosion?

Accepted Answer

Planting trees and perennial plants helps to hold the soil in place and prevent erosion.

Quiz 12: Mineral and Soil Resources

Identify the major components of soil and discuss the role of each in the support of living organisms.

This irrigated soil in Colorado can no longer be used for agriculture because of the accumulation of

The Conservation Reserve Program (CRP) is a voluntary subsidy program that pays farmers to stop producing crops on highly erodible farmland. Instead farmers are required to:

Contour plowing, strip cropping, and terracing are soil conservation methods that are BEST suited to which of the following situations?

What percentage of the earth's land area is suitable for agriculture?

The figure (A)below shows a generalized soil profile. Explain what a soil profile is then apply this information to compare and contrast the soil profile in the two photographs (B and C)below. A B C

What methods of cultivation are shown in the photographs below? Describe these methods and explain their benefits. A B