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Environmental science final exam - franek EGGS 100 Final
Actual Exam Newest Actual Exam With Complete Questions
And Correct Detailed Answers (Verified Answers) |Already
Graded A+
hydrofracking - ANSWERS---Oil and natural gas trapped between
compressed layers of shale rock formations
-New technologies allowed access
-Horizontal drilling
-Hydraulic fracturing (hydrofracking)
-Pump water, sand, and chemicals into cracks
-Produces hazardous waste slurry
energy resources - ANSWERS--90% of the commercial energy used in
the world comes from nonrenewable resources
-Oil, natural gas, and coal
-Energy resources vary greatly in their net energy
-Amount of energy available from a resource minus the amount of
energy needed to make it available
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net energy - ANSWERS--the amount of high-quality energy that is
available to be used from a resource after subtracting the energy
needed to make it usable
net energy yield - ANSWERS--Amount of high-quality energy
available from a resource minus the high-quality energy needed to
make the energy available
net energy ratio - ANSWERS---Also called energy returned on
investment
-Energy obtained per unit energy used to obtain it
energy density - ANSWERS--Amount of energy available per kilogram
of the resource
conventional crude oil - ANSWERS--is abundant and has a medium
net energy yield, but using it causes air and water pollution and
releases greenhouse gases to the atmosphere (CO2)
unconventional heavy oil - ANSWERS--from oil shale rock and oil
sands
-Potentially large supplies
-Low net energy yield
-Higher environmental impact
crude oil - ANSWERS--(petroleum)
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Contains combustible hydrocarbons
-cannot be used as it comes out of the ground
-Must be refined using high-quality energy
-Petrochemicals-byproducts
Peak production - ANSWERS--Time after which production from a
well declines
availability determined by - ANSWERS---Demand
-Technology
-Rate at which we remove the oil
-Cost of making oil available
-Market price
cheap oil - ANSWERS--increasing shortage of (blank)
-Easy-to-reach deposits are quickly being depleted
fossil fuels - ANSWERS--U.S. commercial energy sources
*82% FROM (blank)*
largest portion comes from crude oil
U.S. oil consumption exceeds domestic production
Must import oil
Recent rise in domestic production of tight oil from shale rock
Likely to peak around 2020 and then decline
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Environmental costs of natural gas - ANSWERS---Land disruption,
greenhouse gas emission, air pollution, water pollution, and loss of
biodiversity
-Burning oil accounts for 43% of global CO2 emissions
tar sands - ANSWERS--also known as Oil sands
-Extensive deposits in Canada
-Extraction
-Clear-cutting forests and strip
-mining the land
-Low net energy yield
-Requires much water and emits pollutants
shale oil - ANSWERS---Oil that is integrated within shale rock
-Production involves mining, crushing, and heating the rock
conventional natural gas - ANSWERS---Is more plentiful than oil
-Has a medium net energy yield and a fairly low production cost
-Is a clean-burning fuel
-However, producing it has created environmental problems
natural gas - ANSWERS--50-90% methane CH4
Environmental science final exam - franek EGGS 100 Final
Actual Exam Newest Actual Exam With Complete Questions
And Correct Detailed Answers (Verified Answers) |Already
Graded A+
hydrofracking - ANSWERS---Oil and natural gas trapped between
compressed layers of shale rock formations
-New technologies allowed access
-Horizontal drilling
-Hydraulic fracturing (hydrofracking)
-Pump water, sand, and chemicals into cracks
-Produces hazardous waste slurry
energy resources - ANSWERS--90% of the commercial energy used in
the world comes from nonrenewable resources
-Oil, natural gas, and coal
-Energy resources vary greatly in their net energy
-Amount of energy available from a resource minus the amount of
energy needed to make it available
,2|Page
net energy - ANSWERS--the amount of high-quality energy that is
available to be used from a resource after subtracting the energy
needed to make it usable
net energy yield - ANSWERS--Amount of high-quality energy
available from a resource minus the high-quality energy needed to
make the energy available
net energy ratio - ANSWERS---Also called energy returned on
investment
-Energy obtained per unit energy used to obtain it
energy density - ANSWERS--Amount of energy available per kilogram
of the resource
conventional crude oil - ANSWERS--is abundant and has a medium
net energy yield, but using it causes air and water pollution and
releases greenhouse gases to the atmosphere (CO2)
unconventional heavy oil - ANSWERS--from oil shale rock and oil
sands
-Potentially large supplies
-Low net energy yield
-Higher environmental impact
crude oil - ANSWERS--(petroleum)
,3|Page
Contains combustible hydrocarbons
-cannot be used as it comes out of the ground
-Must be refined using high-quality energy
-Petrochemicals-byproducts
Peak production - ANSWERS--Time after which production from a
well declines
availability determined by - ANSWERS---Demand
-Technology
-Rate at which we remove the oil
-Cost of making oil available
-Market price
cheap oil - ANSWERS--increasing shortage of (blank)
-Easy-to-reach deposits are quickly being depleted
fossil fuels - ANSWERS--U.S. commercial energy sources
*82% FROM (blank)*
largest portion comes from crude oil
U.S. oil consumption exceeds domestic production
Must import oil
Recent rise in domestic production of tight oil from shale rock
Likely to peak around 2020 and then decline
, 4|Page
Environmental costs of natural gas - ANSWERS---Land disruption,
greenhouse gas emission, air pollution, water pollution, and loss of
biodiversity
-Burning oil accounts for 43% of global CO2 emissions
tar sands - ANSWERS--also known as Oil sands
-Extensive deposits in Canada
-Extraction
-Clear-cutting forests and strip
-mining the land
-Low net energy yield
-Requires much water and emits pollutants
shale oil - ANSWERS---Oil that is integrated within shale rock
-Production involves mining, crushing, and heating the rock
conventional natural gas - ANSWERS---Is more plentiful than oil
-Has a medium net energy yield and a fairly low production cost
-Is a clean-burning fuel
-However, producing it has created environmental problems
natural gas - ANSWERS--50-90% methane CH4
