Ducks Unlimited Final Tests– Practice Questions
with Correct Verified Answers
Control weeds and aerate soil
- correct answers Tillage is primarily used for which of the
following?
20 to 40 percent
- correct answers How much of the earth's land surface is covered with
grasslands?
Provide very important habitat for wildlife
Filter runoff from precipitation
Build deep and rich soils
Store carbon dioxide from the atmosphere
- correct answers Select all the services
grasslands provide
Forest and desert
- correct answers Grasslands typically exist between which of the
following?
Lasting effects from Dust Bowl
- correct answers Which of the following is NOT a main
threat which plagues grasslands today?
True - correct answers When topsoil is lost, the loss is fairly permanent because the
process to create just three centimeters of topsoil takes about 1,000 years.
,Incentives provided to landowners to conserve grassland habitats
- correct answers Which
of the following best describes the Farm Bill?
Africa, Australia and South America
- correct answers Where are savannas typically
found?
To conserve soils for agricultural production
- correct answers Which of the following is
the specific mission of the Natural Resources Conservation Service?
Grass roots decaying below the surface enriches the soil with nutrients
- correct answers
Why do temperate grasslands have the most fertile soil on earth?
Swamp- correct answers A wetland with woody plants, saturated/slow moving water and
a lack of oxygen in the soil can be described as a _____.
Hydrological regime
Landscape position
Vegetation cover
- correct answers Select all the factors in which a wetland is classified.
Wetlands provide both commercial and recreational fisheries
- correct answers Wetlands
are economically important due to which of the following factors?
Developing agricultural land
- correct answers Wetlands are NOT critical for which of the
following?
, Stopping water from naturally changing course
- correct answers Levees are most
commonly used for which of the following?
False- correct answers Hurricanes do less financial damage, flood further inland and
displace more people when coasts are heavily developed.
Soil runoff
Sedimentation- correct answers Select all the following causes of degradation to a
wetland.
1934- correct answers Which year was the Duck Stamp Act enacted?
Theodore Roosevelt
- correct answers Which president enacted the Farm Bill?
Temporary- correct answers The hooded warbler is a ________ wetland species.
Greater volume of food production for large food webs
- correct answers Biological
productivity includes which of the following?
False- correct answers To be considered a wetland, the area must be covered in shallow
water all year.
Floodplain protection- correct answers Riparian wetlands are particularly vulnerable to
destruction, but serves a vital role in which of the following?
with Correct Verified Answers
Control weeds and aerate soil
- correct answers Tillage is primarily used for which of the
following?
20 to 40 percent
- correct answers How much of the earth's land surface is covered with
grasslands?
Provide very important habitat for wildlife
Filter runoff from precipitation
Build deep and rich soils
Store carbon dioxide from the atmosphere
- correct answers Select all the services
grasslands provide
Forest and desert
- correct answers Grasslands typically exist between which of the
following?
Lasting effects from Dust Bowl
- correct answers Which of the following is NOT a main
threat which plagues grasslands today?
True - correct answers When topsoil is lost, the loss is fairly permanent because the
process to create just three centimeters of topsoil takes about 1,000 years.
,Incentives provided to landowners to conserve grassland habitats
- correct answers Which
of the following best describes the Farm Bill?
Africa, Australia and South America
- correct answers Where are savannas typically
found?
To conserve soils for agricultural production
- correct answers Which of the following is
the specific mission of the Natural Resources Conservation Service?
Grass roots decaying below the surface enriches the soil with nutrients
- correct answers
Why do temperate grasslands have the most fertile soil on earth?
Swamp- correct answers A wetland with woody plants, saturated/slow moving water and
a lack of oxygen in the soil can be described as a _____.
Hydrological regime
Landscape position
Vegetation cover
- correct answers Select all the factors in which a wetland is classified.
Wetlands provide both commercial and recreational fisheries
- correct answers Wetlands
are economically important due to which of the following factors?
Developing agricultural land
- correct answers Wetlands are NOT critical for which of the
following?
, Stopping water from naturally changing course
- correct answers Levees are most
commonly used for which of the following?
False- correct answers Hurricanes do less financial damage, flood further inland and
displace more people when coasts are heavily developed.
Soil runoff
Sedimentation- correct answers Select all the following causes of degradation to a
wetland.
1934- correct answers Which year was the Duck Stamp Act enacted?
Theodore Roosevelt
- correct answers Which president enacted the Farm Bill?
Temporary- correct answers The hooded warbler is a ________ wetland species.
Greater volume of food production for large food webs
- correct answers Biological
productivity includes which of the following?
False- correct answers To be considered a wetland, the area must be covered in shallow
water all year.
Floodplain protection- correct answers Riparian wetlands are particularly vulnerable to
destruction, but serves a vital role in which of the following?
