Modules 1 - 5: Quizzes

Question 1

agricultural land comprises what percent of our ice-free global land area?

Answer 1

37%

Question 2

rank the top 3 categories of agricultural crops based on land area harvested

Answer 2

1. cereals
2. oilcrops
3. fruits, veggies, and nuts

Question 3

the core principle to sustainable agriculture is?

Answer 3

balancing the triple bottom line

Question 4

on a global basis, human withdrawls of water exceed losses due to evapotranspiration on an annual basis.

Answer 4

false

Question 5

a ___ is the land that water flows across or under on its way to a river, lake, stream, or bay. water travels over farm fields, forests, suburban lawns, and city street, or it seeps into the soil and travels as _____

Answer 5

watershed; groundwater

Question 6

label

Answer 6

1. nutrients from the land run off into the pond
2. excess nutrients cause algae to bloom
3. dying algae sink to the bottom of the pond
4. bacteria consume the decaying algae
5. oxygen is used up by the bacteria
6. low oxygen “dead” zones harm other aquatic life

Question 7

in the process of eutrophication, which step involves the production of oxygen?

Answer 7

algae grow, algal blooms form

Question 8

wet weather events are required for ___ whereas _____ are a source rain or shine

Answer 8

nonpoint source pollution
point source pollution

Question 9

point source pollution remains the largest source of impairment to the waters of the united states

Answer 9

false

Question 10

the vegetable and agronomic crops BMP manual published by FDACS was reviewed and edited entirely by growers and farmers.

Answer 10

false

Question 11

non-point sources of pollution can be controlled through

Answer 11

BMP

Question 12

information on soils is important for:

Answer 12

• nutrient management
• pesticide management
• wetland delineation
• land use planning
• mapping current drought conditions

Question 13

what single soil forming factor has the greatest impact on predicting soil types on landscapes (continental) scale

Answer 13

climate

Question 14

a soil’s texture is determined by the amount of

Answer 14

sand, clay, and silt

Question 15

rank the 3 mineral particle-size designations in order of increasing coarseness (smallest = 1 and largest = 3)

Answer 15

1. clay
2. silt
3. sand

Question 16

during a drought, most plants are water stressed. under these conditions, what primarily fills soil pore space?

Answer 16

air

Question 17

during a flood, most plants are oxygen deprived. under these conditions, what primarily fills soil pore space?

Answer 17

water

Question 18

what type of soil takes years to drain water out?

Answer 18

clay

Question 19

which soil type has the largest surface area?

Answer 19

clay

Question 20

which soil type is dominated by micropores?

Answer 20

clay

Question 21

when drained, which container is likely to have soil characterized by macropores filled with air?

Answer 21

sand

Question 22

when drained, which container is likely to have the highest water content at field capacity?

Answer 22

clay

Question 23

according to the our world in data article, which plant group dominates global arable land use by area?

Answer 23

cereal crops

Question 24

globally, we use less land per person to grow cereal crops in 2014 than we did in 1961

Answer 24

true

Question 25

mexico was one of the last countries to be linked to the green revolution of the 20th century

Answer 25

false

Question 26

the our world in data article provide country-specific data regarding cereal yields versus land used for cereal production from 1961 to 2018.
what country had land for cereal decline while cereal yields increased (+200%) and population increased?

Answer 26

united states

Question 27

the our world in data article provide country-specific data regarding cereal yields versus land used for cereal production from 1961 to 2018.
what country had land for cereal production decline while cereal yields increased (+200%) but population size is stable?

Answer 27

germany

Question 28

the our world in data article provide country-specific data regarding cereal yields versus land used for cereal production from 1961 to 2018.
what country had land for cereal production that has barely changed, yet cereal yields continue to increase over time?

Answer 28

india and china

Question 29

the our world in data article provide country-specific data regarding cereal yields versus land used for cereal production from 1961 to 2018.
what country had land for cereal production increase with cereal yield increases exceeding the increase in population?

Answer 29

brazil

Question 30

the our world in data article provide country-specific data regarding cereal yields versus land used for cereal production from 1961 to 2018.
what country had land for cereal production has continued to increase but cereal yields are not keeping up with the population increases?

Answer 30

sub-sahaaran africa

Question 31

two key variables we can change to produce more food crops are: increase the area of land we grow our food over and increase yield output. Using this information, match the country with the best variables that are listed above: brazil

Answer 31

expansion and intensification

Question 32

two key variables we can change to produce more food crops are: increase the area of land we grow our food over and increase yield output. Using this information, match the country with the best variables that are listed above: china

Answer 32

intensification

Question 33

two key variables we can change to produce more food crops are: increase the area of land we grow our food over and increase yield output. Using this information, match the country with the best variables that are listed above: india

Answer 33

intensification

Question 34

two key variables we can change to produce more food crops are: increase the area of land we grow our food over and increase yield output. Using this information, match the country with the best variables that are listed above: germany

Answer 34

intensification

Question 35

two key variables we can change to produce more food crops are: increase the area of land we grow our food over and increase yield output. Using this information, match the country with the best variables that are listed above: united states

Answer 35

intensification

Question 36

two key variables we can change to produce more food crops are: increase the area of land we grow our food over and increase yield output. Using this information, match the country with the best variables that are listed above: sub-saharan africa

Answer 36

expansion