Human activities, such as agriculture, can require altering the land.
Identify an environmental problem associated with large-scale intensive agriculture on soil.
1 point
1
Question 2
2.
The land use around the Chesapeake Bay is primarily agricultural, with large areas of land that were originally forested now used for the poultry (birds)/hog (pig) industry. Many of these farms are large-scale feeding operations.
Describe one unintended consequence of concentrated poultry/hog feeding operations on the biodiversity in the Chesapeake Bay.
1 point
1
Question 3
3.
Forests are a natural resource found in Canada. Spruce, fir, and pine species are native over much of the country and are harvested to produce a variety of products. One method of harvesting is clear-cutting.
Describe one unintended consequence of clear-cutting forests in Canada.
1 point
1
Question 4
4.
Some of the agricultural practices emerging from the Green Revolution could have contributed to the air pollutants shown in the maps, while other methods had little to no impact on air pollution.
IdentifyANDdescribe ONE method that emerged during the Green Revolution that negatively impacted soil composition.
1 point
1
Question 5
5.
Most wild fish populations belong to the public and not to individuals or individual countries. Explain how this public ownership can lead to an environmental problem.
1 point
1
Question 6
6.
The semiarid climate of Arizona poses challenges for its agriculture. Most land is used to grow crops such as alfalfa and grasses for hay, vegetables such as lettuce, and cotton. To be viable, given Arizona’s dry conditions, agricultural lands must be irrigated. The two major sources of irrigation water in Arizona are the Colorado River and groundwater.
Describe specifically why Arizona farmers may use drip irrigation over other irrigation techniques.
1 point
1
Question 7
7.
The semiarid climate of Arizona poses challenges for its agriculture. Most land is used to grow crops such as alfalfa and grasses for hay, vegetables such as lettuce, and cotton. To be viable, given Arizona’s dry conditions, agricultural lands must be irrigated. The two major sources of irrigation water in Arizona are the Colorado River and groundwater.
Given the semiarid climate in Arizona, describe why using groundwater for irrigation of crops may not be the best choice.
1 point
1
Question 8
8.
Figure 1 shows the amount of sediment in runoff in undisturbed areas and in areas where mining has disturbed the vegetation in the riparian zone of a stream in Brazil.
Identify the day of the study when the largest amount of sediment was present in runoff.
1 point
1
Question 9
9.
Figure 1 shows the amount of sediment in runoff in undisturbed areas and in areas where mining has disturbed the vegetation in the riparian zone of a stream in Brazil.
Describe the relationship between the amount of rainfall and the amount of sediment in runoff.
1 point
1
Question 10
10.
Figure 1 shows the amount of sediment in runoff in undisturbed areas and in areas where mining has disturbed the vegetation in the riparian zone of a stream in Brazil.
Based on the data in the graph, explain how mining practices affected the water quality in nearby streams.