Question 1

Which of the following statements about rangelands is true?

Accepted Answer

A)  Rangelands have native grasses with fibrous root systems that can survive extended periods of drought. 
B)  Rangelands are valuable for food production but yield no other economically valuable resources. 
C)  Rangelands can benefit from overgrazing by cattle since it may actually increase the plant diversity. 
D)  Rangelands are found in temperate regions, but not in tropical climates. 
E)  About 10% of the human population lives in rangelands that border deserts. 
A)  Rangelands have native grasses with fibrous root systems that can survive extended periods of drought. 
B)  Rangelands are valuable for food production but yield no other economically valuable resources. 
C)  Rangelands can benefit from overgrazing by cattle since it may actually increase the plant diversity. 
D)  Rangelands are found in temperate regions, but not in tropical climates. 
E)  About 10% of the human population lives in rangelands that border deserts.

Question 2

Identify the criteria used by the Defenders of Wildlife to rank the endangered ecosystems in the United States. Identify three endangered ecosystems that meet these criteria and explain how the criteria apply to them.

Accepted Answer

The criteria used to rank the most endan

Which of the following statements about rangelands is true?

Identify the criteria used by the Defenders of Wildlife to rank the endangered ecosystems in the United States. Identify three endangered ecosystems that meet these criteria and explain how the criteria apply to them.

Introducing Environmental Science and Sustainability

Environmental Laws Economic and Ethics

Ecosystems and Energy

Ecosystems and the Physical Environment

Ecosystems and Living Organisms

Major Ecosystems of the World

Human Health and Environmental Toxicology

The Human Population

The Urban World

Energy Consumption

Fossil Fuels

Renewable Energy and Nuclear Power

Water: a Limited Resource

Soil Resources

Mineral Resources

Biological Resources

Food Resources

Air Pollution

Global Climate Change

Water Pollution

Pest Management

Solid and Hazardous Waste

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Exam 17: Land Resources

Which of the following statements about rangelands is true?

Identify the criteria used by the Defenders of Wildlife to rank the endangered ecosystems in the United States. Identify three endangered ecosystems that meet these criteria and explain how the criteria apply to them.

Introducing Environmental Science and Sustainability

Environmental Laws Economic and Ethics

Ecosystems and Energy

Ecosystems and the Physical Environment

Ecosystems and Living Organisms

Major Ecosystems of the World

Human Health and Environmental Toxicology

The Human Population

The Urban World

Energy Consumption

Fossil Fuels

Renewable Energy and Nuclear Power

Water: a Limited Resource

Soil Resources

Mineral Resources

Biological Resources

Food Resources

Air Pollution

Global Climate Change

Water Pollution

Pest Management

Solid and Hazardous Waste

Tomorrows Word

Filters