ECOL 1000 EXAM 2 UGA
CONNELLY
T/F: Hydropower is the most used renewable energy source. -
ANSWERS-True
Bioenergy - ANSWERS-energy contained in firewood or other plant
matter. derived from solar energy. ex. wood, charcoal, animal dung
________ fuels take carbon out of coal, oil, and natural gas deposits -
ANSWERS-fossil
biofuels - ANSWERS-CO2 used to make ethanol from trees comes
from air, not out of ground. Therfore, when it is burned, it does not
increase the net amount of CO2 in air.
what's a disadvantage of biofuels? - ANSWERS-corn and other food
prices go up
Kudzu video - ANSWERS-
What are the advantages of Cellulosic ethanol (Cellulose)? -
ANSWERS--switchgrass
-native
-needs little fertilizer or water
,-grows on marginal land
-perennial (comes back every year)
What are the disadvantages of Cellulosic ethanol (Cellulose)? -
ANSWERS--not produced on large-scale
-no subsidy value
-enzymes used in processing are expensive
algae biofuel video - ANSWERS--carbon nuetral food source
-needs CO2 to grow, so it's good
-put next to power plants to consume CO2 put off by the plants
Experimental NASA OMEGA bags - ANSWERS-bags allow
freshwater to flow out of bag and prevent saltwater from entering.
CO2 enters. algae feed on waste and grows fatty lipid cells
Biofuel advantages - ANSWERS--carbon nuetral
-Lower NOx and SOx
-Abundant
-widely distributed
-produced domestically
Biofuel Disadvantages - ANSWERS--is it really carbon nuetral?
(think of transportation, processing, fertilizers, water...)
-net gain?.....
, Where is the greatest potential for wind power in the US and why? -
ANSWERS-Out west (windy prairies), because the geography and
topography cause uneven heating of Earth. Winds formed from high
to low pressure.
Wind turbines US video - ANSWERS--higher up you go, windier it is
Denmark video - ANSWERS--world leader in wind power technology
-5.5 thousand wind turbines generating 20% of nations power
-wind power is higher on sea than land
-wind power unpredictable
-coal power plants - stability - projected to produce 50% country's
power by 2030
-Denmark commands 60% of the global market for wind turbines
2/3 of wind power in US comes from ______, _______, _______,
______, & _________ - ANSWERS-Texas, California, Iowa,
Minnesota, & Washington
Wind Farms - ANSWERS-clusters of turbines
Advantages of wind power - ANSWERS--no fuel needed
-no pollutants released
-domestic energy source
CONNELLY
T/F: Hydropower is the most used renewable energy source. -
ANSWERS-True
Bioenergy - ANSWERS-energy contained in firewood or other plant
matter. derived from solar energy. ex. wood, charcoal, animal dung
________ fuels take carbon out of coal, oil, and natural gas deposits -
ANSWERS-fossil
biofuels - ANSWERS-CO2 used to make ethanol from trees comes
from air, not out of ground. Therfore, when it is burned, it does not
increase the net amount of CO2 in air.
what's a disadvantage of biofuels? - ANSWERS-corn and other food
prices go up
Kudzu video - ANSWERS-
What are the advantages of Cellulosic ethanol (Cellulose)? -
ANSWERS--switchgrass
-native
-needs little fertilizer or water
,-grows on marginal land
-perennial (comes back every year)
What are the disadvantages of Cellulosic ethanol (Cellulose)? -
ANSWERS--not produced on large-scale
-no subsidy value
-enzymes used in processing are expensive
algae biofuel video - ANSWERS--carbon nuetral food source
-needs CO2 to grow, so it's good
-put next to power plants to consume CO2 put off by the plants
Experimental NASA OMEGA bags - ANSWERS-bags allow
freshwater to flow out of bag and prevent saltwater from entering.
CO2 enters. algae feed on waste and grows fatty lipid cells
Biofuel advantages - ANSWERS--carbon nuetral
-Lower NOx and SOx
-Abundant
-widely distributed
-produced domestically
Biofuel Disadvantages - ANSWERS--is it really carbon nuetral?
(think of transportation, processing, fertilizers, water...)
-net gain?.....
, Where is the greatest potential for wind power in the US and why? -
ANSWERS-Out west (windy prairies), because the geography and
topography cause uneven heating of Earth. Winds formed from high
to low pressure.
Wind turbines US video - ANSWERS--higher up you go, windier it is
Denmark video - ANSWERS--world leader in wind power technology
-5.5 thousand wind turbines generating 20% of nations power
-wind power is higher on sea than land
-wind power unpredictable
-coal power plants - stability - projected to produce 50% country's
power by 2030
-Denmark commands 60% of the global market for wind turbines
2/3 of wind power in US comes from ______, _______, _______,
______, & _________ - ANSWERS-Texas, California, Iowa,
Minnesota, & Washington
Wind Farms - ANSWERS-clusters of turbines
Advantages of wind power - ANSWERS--no fuel needed
-no pollutants released
-domestic energy source
