Question 1

What percentage of the earth's land area is suitable for agriculture
A)1%
B)6%
C)11%
D)27%

Accepted Answer

The FAO estimates that only 11% of the earth's land area is suitable for agriculture due to factors such as climate, soil quality, and topography. This highlights the need to prioritize sustainable agricultural practices and efficient use of available land to meet the growing demand for food.

Question 2

The TWO main reasons that certain areas are not suitable for agriculture are:
A)soil is too dry and soil has chemical problems (e.g.salinization)
B)soil is too shallow and soil is too wet
C)soil is too wet and soil is too dry
D)soil is frozen and soil has chemical problems (e.g.salinization)

Accepted Answer

The answer of The TWO main reasons that certain areas...

Question 3

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

Accepted Answer

The answer of In the United States,agricultural practices have been...

Question 4

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

Accepted Answer

The answer of Besides being a precious metal used to...

Question 5

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:
A)strip crop native plants with grain crops on the erodible land.
B)plant native grasses or trees on the highly erodible land and then "retire" it from further use for 10 to 15 years,
C)develop and adopt a 5-year conservation plan for their farms that includes erosion-control measures,and if they do not comply,they lose federal agricultural subsidies such as price supports
D)plant shelterbelts to reduce the impact of wind erosion

Accepted Answer

The best choice is to plant native grasses or trees on the highly erodible land and then "retire" it from further use for 10 to 15 years. This allows the land to naturally regenerate and promotes biodiversity, while also reducing soil erosion and improving water quality. The other choices such as strip cropping, developing a conservation plan, and planting shelterbelts may also help with soil conservation, but they are not the primary purpose of the CRP program.

Question 6

Compare surface mining to subsurface mining for extracting minerals.Include in your comparison a)the circumstances under which each given method is used,b)the ways in which the mining is done,c)the environmental impact of each mining process,and c)steps needed to reclaim the site after this type of mining has occurred.

Accepted Answer

The answer of Compare surface mining to subsurface mining for...

Question 7

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.

Accepted Answer

The answer of What is a mineral
 Compare and contrast...

Question 8

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

Accepted Answer

The answer of What is humus
 Briefly explain why it...

Question 9

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.

Accepted Answer

The answer of What is a rock
 Describe the different...

Question 10

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

Accepted Answer

The answer of Identify the major components of soil and...

Quiz 12: Mineral and Soil Resources

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

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

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

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

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:

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.

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

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.

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