NREM 120 Exam 3 questions and
answers already passed
What is a driving force of grasslands?
A.Seasonal dormancy
B.Herbivores
C.Fire
D.Management
E.All of the above - correct answer ✔✔ All of the above
What percent of the USA is rangeland?
A.10%
B.29%
C.57%
D.89% - correct answer ✔✔ 29%
What causes the transition from Tall grass and Short grass prairie across the
U.S.? (K)
A.Rainfall
B.Number of trees
C.Agriculture
D.Urbanization - correct answer ✔✔ Rainfall
,Why are legumes important?
A.They are forbs
B.They can fix nitrogen
C.They are an invasive species
D.They cannot survive in prairies - correct answer ✔✔ They can fix nitrogen
What is NOT a characteristic of warm season grasses?
A.Make for good agricultural soils
B.Deep roots
C.Good organic matter porosity
D.Makes up the tundra - correct answer ✔✔ Makes up the tundra
What is Metabolic Reserve?
A.What is needed for roots to grow at least 80% of the height of the grass
B.What needs to be left behind to make grazing sustainable
C.What is needed to feed cattle on the rangeland
D.What is kept in the plant and not used for future growth - correct answer ✔✔ What needs to
be left behind to make grazing sustainable
What happens when a grassland is overgrazed?
A.Die-off
, B.Desertification
C.Dry spell
D.Dendration - correct answer ✔✔ Desertification
What happened during the Homestead Act (1862)?
A.Families moving west would get 160 acres of free land
B.Settlers in the west must have active grazing livestock
C.Settlers in the west must NOT have any grazing livestock
D.Pays farmers to not crop or graze on marginal cropland - correct answer ✔✔ Families moving
west would get 160 acres of free land
What group of birds has declined the most from anthropogenic effects? (K)
A.Forest birds
B.Wetland birds
C.Tundra birds
D.Grassland birds - correct answer ✔✔ Grassland birds
What program pays farmers to not crop or graze marginal cropland?
A.Homestead Act
B.Conservation Reserve Program
C.Environmental Agricultural Act (EAA)
D.Farmers Only Association - correct answer ✔✔ Conservation Reserve Program
answers already passed
What is a driving force of grasslands?
A.Seasonal dormancy
B.Herbivores
C.Fire
D.Management
E.All of the above - correct answer ✔✔ All of the above
What percent of the USA is rangeland?
A.10%
B.29%
C.57%
D.89% - correct answer ✔✔ 29%
What causes the transition from Tall grass and Short grass prairie across the
U.S.? (K)
A.Rainfall
B.Number of trees
C.Agriculture
D.Urbanization - correct answer ✔✔ Rainfall
,Why are legumes important?
A.They are forbs
B.They can fix nitrogen
C.They are an invasive species
D.They cannot survive in prairies - correct answer ✔✔ They can fix nitrogen
What is NOT a characteristic of warm season grasses?
A.Make for good agricultural soils
B.Deep roots
C.Good organic matter porosity
D.Makes up the tundra - correct answer ✔✔ Makes up the tundra
What is Metabolic Reserve?
A.What is needed for roots to grow at least 80% of the height of the grass
B.What needs to be left behind to make grazing sustainable
C.What is needed to feed cattle on the rangeland
D.What is kept in the plant and not used for future growth - correct answer ✔✔ What needs to
be left behind to make grazing sustainable
What happens when a grassland is overgrazed?
A.Die-off
, B.Desertification
C.Dry spell
D.Dendration - correct answer ✔✔ Desertification
What happened during the Homestead Act (1862)?
A.Families moving west would get 160 acres of free land
B.Settlers in the west must have active grazing livestock
C.Settlers in the west must NOT have any grazing livestock
D.Pays farmers to not crop or graze on marginal cropland - correct answer ✔✔ Families moving
west would get 160 acres of free land
What group of birds has declined the most from anthropogenic effects? (K)
A.Forest birds
B.Wetland birds
C.Tundra birds
D.Grassland birds - correct answer ✔✔ Grassland birds
What program pays farmers to not crop or graze marginal cropland?
A.Homestead Act
B.Conservation Reserve Program
C.Environmental Agricultural Act (EAA)
D.Farmers Only Association - correct answer ✔✔ Conservation Reserve Program
