Land Use REDemption - Ryan Beeler | Laabri | Nneɛma a ɛma wotumi yɛ ade

1

Based on the diagrams above, what is the percent change in the amount of runoff in urban areas compared to forested areas?

81% decrease

60% decrease

150% increase

450% increase

1

Which of the following hypotheses is best supported by the trends shown in this graph?

The number of acres burned and the number of wildfires have decreased since 1930 because of more large-scale fire suppression interventions such as prescribed burns.

The number of acres burned has increased since 1930 because of less public interest in preserving wild lands.

The number of wildfires has steadily decreased since 1930 because of the frequency of droughts and other effects of climate change.

The number of acres burned and the number of wildfires have increased since 1930 because of increased human interactions in wilderness areas.

1

Which of the following would be the best way to mitigate deforestation?

Replant and protect trees in areas that have been previously cleared.

Grow more diverse timber products to increase economic value in an area.

Stimulate intensive agricultural production of native vegetation close to villages.

Employ clear cutting harvest techniques that are more sustainable.

1

Saltwater intrusion is a growing problem in places in the United States including in the coastal cities of Savannah, Georgia, Cape May, New Jersey, and Tampa Bay, Florida. Which of the following is the most likely cause of saltwater intrusion into freshwater municipal wells in these cities located near the coastline?

Increase in impervious surfaces, which increases groundwater pollution

Changes in atmospheric carbon dioxide concentration, which change the pH of ocean water

Destruction of forests, which increases the amount of sediment entering ocean water

Urbanization and population growth, which lead to overpumping from aquifers

1

Which of the following strategies could be used to reduce soil erosion during surface mining of coal?

Replanting vegetation.

Increasing the use of open pit mining.

Adding air filtration systems.

Removing only low-grade ores.