Unit 3.1 – Questions

1. Which bioenergy source will have the greatest impact on water resources in the North Central Region in the near future?

a. soybean biodiesel
b. cellulosic-based ethanol from switchgrass
c. corn-grain ethanol
d. pelletized biomass from cellulosic feedstocks
e. hybrid poplars


2. Which of the following is a potential threat to water resources sustainability in the North Central Region?

a. increased bioenergy feedstock production on irrigated land
b. inefficient bioenergy processing facilities
c. production of annual bioenergy crops on former CRP land
d. all of the above


3. The Earth is known as the Blue Planet because 70 percent of its surface is covered with water; what is the percent of water available on land?

a. 30%
b. 1.5%
c. 2.4%
d. 10%


4. Which of the following are not processes in the Water Cycle?

a. condensation and precipitation
b. production and cultivation
c. evaporation and transpiration
d. runoff and infiltration


5. Which of the following describes water that is available for evapotranspiration?

a. water accumulated in clouds
b. runoff water from rainfall
c. water that evaporates from ponds
d. water held as soil moisture


6. Which bioenergy crops are expected to provide for the greatest infiltration?

a. cultivated corn and soybeans
b. poplar and willow
c. miscanthus and switchgrass
d. all the above will be the same


7. Which of the following is not true for native, perennial crops used in cellulosic-based bioenergy production?

a. vegetation is removed at harvest, leaving roots intact to prevent soil erosion
b. expected to require less fertilization and pesticide applications than most row crops
c. research on large-scale operations shows positive impacts on water quality
d. they are more profitable to grow than row crops for bioenergy
e. both b and d
f. both c and d


8. Ecological Intensification is described as:

a. the concept of raising grain yields closer to their genetic potential
b. reducing environmental consequences of soil degradation
c. increasing yield on currently cultivated lands
d. preventing expansion of crop production onto marginal or sensitive lands
e. all of the above


9. Ecological Intensification relies solely on biotechnology to achieve its desired goals

a. True
b. False


10. Consumptive use of water for corn-grain ethanol production can be characterized as:

a. dominated solely by feedstock production
b. zero liquid discharge
c. variable across the North Central Region
d. consistent in all production facilities, since corn is corn


Unit 3.1 Answers