SCI 250 Final || ELITE-LEVEL QUESTIONS WITH
CORRECT SOLUTIONS!!
TRUE or FALSE: The link between plate tectonics and formation of mineral deposits has made
the search for new ores more efficient. correct answers True
TRUE or FALSE: Whether a given ore deposit is economic depends on the metal concentration,
not on the mineral in which that metal occurs. correct answers False
Conflict minerals
A) Are those mined in countries as a principal source of revenue to support warring factions or
repressive governments.
B) Are those that display two different colors depending on the direction in which they are
viewed
C) Are those that represent the primary assets of a country that are surrendered to the victor in a
war between nations
D) Are those that have a substantially reduced hardness in one crystal direction in comparison to
other crystal directions correct answers A) Are those mined in countries as a principal source of
revenue to support warring factions or repressive governments.
Weathering in tropical climates can produce residual ores rich in
A) Calcite and quartz.
B) Feldspar and mica.
C) Sulfur and sulfide ores.
D) Iron and aluminum. correct answers D) Iron and aluminum.
TRUE or FALSE: Strip mining is as hazardous to the miners as underground mining, because of
the danger of acid drainage from strip mines. correct answers False
TRUE or FALSE: Ash that is produced as a result of burning of coal contains nontoxic metals
and silicate minerals. correct answers False
Concern about exploiting these is that disturbing the material by mining may release potent
greenhouse gases into the atmosphere.
A) Tar sand
B) Oil shale
C) Gas hydrates
D) Kerogen correct answers C) Gas hydrates
Petroleum consists of a variety of liquid compounds which are accurately referred to as
A) Fossil fuels.
B) Crude oils.
C) Natural gases.
D) Hydrocarbons. correct answers D) Hydrocarbons.
, TRUE OR FALSE: Because developing countries use little energy per capita, global energy
demands can be expected to remain close to current levels for several decades at least. correct
answers False
TRUE OR FALSE: A "wind farm" with generating capacity comparable to that of a conventional
electric power plant would cover a large area, but the land could be used simultaneously for
other purposes, such as agricultural activities. correct answers True
TRUE OR FALSE: Binary geothermal power generators can utilize lower temperature water in
comparison to traditional (flash) geothermal technology. correct answers True
The sun generates its tremendous energy output by
A) Nuclear fusion.
B) Nuclear fission.
C) Combustion.
D) Geothermal energy. correct answers A) Nuclear fusion.
About 95% of the uranium reserves around the world are found in
A) metamorphic and metasedimentary rocks.
B) igneous and metasedimentary rocks.
C) sedimentary and metamorphic rocks.
D) sedimentary and metasedimentary rocks. correct answers D) sedimentary and
metasedimentary rocks.
Plutonium is
A) Chemically toxic to humans.
B) Radioactive.
C) Fissionable.
D) All of the choices are correct. correct answers D) All of the choices are correct.
WIND ENERGY OR BIOFUELS
Unfossilized fuels
Requires substantial area of land for generator arrays
Contribute to carbon-dioxide and particulate pollution
Most cannot be harnessed
Can be developed concurrently with farming and grazing of livestock
Estimated as 20% supply of energy in U.S. by 2030
Used to fuel vehicles
Best production at high altitudes
May be derived from waste
Land use diverted from food production correct answers Unfossilized fuels: B
Requires substantial area of land for generator arrays: W
Contribute to carbon-dioxide and particulate pollution: B
Most cannot be harnessed: W
Can be developed concurrently with farming and grazing of livestock: W
Estimated as 20% supply of energy in U.S. by 2030: W
Used to fuel vehicles: B
Best production at high altitudes: W
CORRECT SOLUTIONS!!
TRUE or FALSE: The link between plate tectonics and formation of mineral deposits has made
the search for new ores more efficient. correct answers True
TRUE or FALSE: Whether a given ore deposit is economic depends on the metal concentration,
not on the mineral in which that metal occurs. correct answers False
Conflict minerals
A) Are those mined in countries as a principal source of revenue to support warring factions or
repressive governments.
B) Are those that display two different colors depending on the direction in which they are
viewed
C) Are those that represent the primary assets of a country that are surrendered to the victor in a
war between nations
D) Are those that have a substantially reduced hardness in one crystal direction in comparison to
other crystal directions correct answers A) Are those mined in countries as a principal source of
revenue to support warring factions or repressive governments.
Weathering in tropical climates can produce residual ores rich in
A) Calcite and quartz.
B) Feldspar and mica.
C) Sulfur and sulfide ores.
D) Iron and aluminum. correct answers D) Iron and aluminum.
TRUE or FALSE: Strip mining is as hazardous to the miners as underground mining, because of
the danger of acid drainage from strip mines. correct answers False
TRUE or FALSE: Ash that is produced as a result of burning of coal contains nontoxic metals
and silicate minerals. correct answers False
Concern about exploiting these is that disturbing the material by mining may release potent
greenhouse gases into the atmosphere.
A) Tar sand
B) Oil shale
C) Gas hydrates
D) Kerogen correct answers C) Gas hydrates
Petroleum consists of a variety of liquid compounds which are accurately referred to as
A) Fossil fuels.
B) Crude oils.
C) Natural gases.
D) Hydrocarbons. correct answers D) Hydrocarbons.
, TRUE OR FALSE: Because developing countries use little energy per capita, global energy
demands can be expected to remain close to current levels for several decades at least. correct
answers False
TRUE OR FALSE: A "wind farm" with generating capacity comparable to that of a conventional
electric power plant would cover a large area, but the land could be used simultaneously for
other purposes, such as agricultural activities. correct answers True
TRUE OR FALSE: Binary geothermal power generators can utilize lower temperature water in
comparison to traditional (flash) geothermal technology. correct answers True
The sun generates its tremendous energy output by
A) Nuclear fusion.
B) Nuclear fission.
C) Combustion.
D) Geothermal energy. correct answers A) Nuclear fusion.
About 95% of the uranium reserves around the world are found in
A) metamorphic and metasedimentary rocks.
B) igneous and metasedimentary rocks.
C) sedimentary and metamorphic rocks.
D) sedimentary and metasedimentary rocks. correct answers D) sedimentary and
metasedimentary rocks.
Plutonium is
A) Chemically toxic to humans.
B) Radioactive.
C) Fissionable.
D) All of the choices are correct. correct answers D) All of the choices are correct.
WIND ENERGY OR BIOFUELS
Unfossilized fuels
Requires substantial area of land for generator arrays
Contribute to carbon-dioxide and particulate pollution
Most cannot be harnessed
Can be developed concurrently with farming and grazing of livestock
Estimated as 20% supply of energy in U.S. by 2030
Used to fuel vehicles
Best production at high altitudes
May be derived from waste
Land use diverted from food production correct answers Unfossilized fuels: B
Requires substantial area of land for generator arrays: W
Contribute to carbon-dioxide and particulate pollution: B
Most cannot be harnessed: W
Can be developed concurrently with farming and grazing of livestock: W
Estimated as 20% supply of energy in U.S. by 2030: W
Used to fuel vehicles: B
Best production at high altitudes: W
