Grasslands: Conservation & Management

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25 Terms

1
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Which of the following is NOT a type of grassland?
• Temperate
• Deciduous
• Savanna
• Montane

Deciduous

2
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Grasslands can be found on every continent EXCEPT which of the following?
• Antarctica
• South America
• Asia
• Australia

Antarctica

3
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Which of the following does NOT prevent woody vegetation like shrubs and trees from thriving?
• Use of pesticides
• Fire
• Grazing
• Drought

Use of pesticides

4
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Which of the following qualities determines if an area should be considered a grassland?
• Height of plants
• Amount of precipitation
• Location
• Amount of stored carbon in soil

Amount of precipitation

5
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Some climate scientists even believe grasslands may be more efficient and reliable at removing carbon from the atmosphere than forests, because grasslands are more resilient after fires and drought.
• True
• False

True

6
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Most grasslands are publicly owned.
• True
• False

False

7
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What percentage of grasslands are currently protected?
• Less than six
• Less than eight
• Less than two
• Less than three

Less than eight

8
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The Dust Bowl lasted how many years?
• 12 years
• 11 years
• 15 years
• 10 years

10 years

9
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Which of the following limits the biodiversity of grasslands?
• Loss of topsoil
• Pesticides and fertilizers
• Farming a single variation of a crop
• Grazing animals

Farming a single variation of a crop

10
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Cattle may decimate vegetation through overgrazing and their heavy hooves compact soil leading to erosion and loss of sod.
• True
• False

True

11
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Which of the following services was formed by the federal government due to the Dust Bowl?
• Land and Water Conservation Service
• Soil Conservation Service
• Duck Stamp Service
• Granger-Thye Service

Soil Conservation Service

12
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What percentage of the proceeds from the Duck Stamp Act is provided for wetland and waterfowl habitat acquisition?
• 98
• 50
• 75
• 90

98

13
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Which of the following agricultural practices ensures an area is NOT overgrazed by moving cattle from pasture to pasture?
• Continuous grazing
• Rotational grazing
• Set stocking
• Tactile grazing

Rotational grazing

14
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Which of the following is NOT a reason why cover crops are important?
• Provides habitat for spiders to eat crop pests
• Provides shade to the main crops
• Increases water retention
• Prevents soil erosion

Provides shade to the main crops

15
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Why is fire considered a common management practice?
• Fire burns and removes topsoil so more fertile soil will be available
• Teaches grazing animals to stay away from specific areas
• Fire is not a common management practice and should be avoided
• Suppresses invasive species such as shrubs and trees

Suppresses invasive species such as shrubs and trees

16
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Grasslands typically exist between which of the following?
• Wetlands and deserts
• Fire-prone areas and areas of urbanization
• Forest and desert
• Shrubland and desert

Forest and desert

17
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Select all the services grasslands provide.
• Build deep and rich soils
• Store carbon dioxide from the atmosphere
• Provide very important habitat for wildlife
• Filter runoff from precipitation

• Build deep and rich soils
• Store carbon dioxide from the atmosphere
• Provide very important habitat for wildlife
• Filter runoff from precipitation

18
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Why do temperate grasslands have the most fertile soil on earth?
• Temperate grasslands receive the most rainfall compared to other grasslands
• Grass roots decaying below the surface enriches the soil with nutrients
• Trees require substantial amounts of nutrients to grow, so the lack of trees in grassland areas allows for more fertile soil
• Grasslands have the least number of invasive species who absorb nutrients from the soil

Grass roots decaying below the surface enriches the soil with nutrients

19
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Where are savannas typically found?
• Africa, Australia and South America
• Higher altitudes
• South of the Tropic of Capricorn
• Europe and North America

Africa, Australia and South America

20
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Which of the following best describes the Farm Bill?
• Contract which states farmers and ranchers who own a certain amount of land must provide the government with proof they are utilizing conservation practices
• Enables federal government to fund grazing programs to improve and manage rangelands
• Incentives provided to landowners to conserve grassland habitats
• Special tax farmers must pay each year which goes towards conservation

Incentives provided to landowners to conserve grassland habitats

21
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Which of the following is the specific mission of the Natural Resources
Conservation Service?
• To conserve soils for agricultural production
• To improve water resources on grasslands
• To enforce the Farm Bill
• To keep grasslands in their condition and not allow trees and invasive species alter the land

To conserve soils for agricultural production

22
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How much of the earth's land surface is covered with grasslands?
• 20 to 30 percent
• 20 to 40 percent
• 40 to 45 percent
• 10 to 19 percent

20 to 40 percent

23
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Tillage is primarily used for which of the following?
• To prepare the grasslands for intentional burning
• Control weeds and aerate soil
• Move cattle from one pasture to another
• To harvest the crops

Control weeds and aerate soil

24
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When topsoil is lost, the loss is fairly permanent because the process to create just three centimeters of topsoil takes about 1,000 years.
• True
• False

True

25
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Which of the following is NOT a main threat which plagues grasslands
today?
• Climate change
• Unsustainable agriculture
• Lasting effects from Dust Bowl
• Urbanization

Lasting effects from Dust Bowl