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15
×
Lake Karachay in Russia is considered to be the most pollutted lake on Earth. Why?
Wastes from the Russian nuclear industry
Radioactive material in ash from coal plants
Radioactive dust from natural uranium deposits
The Chernobyl accident
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15
×
Which of the following materials is used to make nuclear weapons & usually produced at the power plant?
all the above
Plutonium
Uranium238
Uranium235
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15
×
In the symbol U235 the number 235 means.........
number of electrons
number of protons
Number of neutrons
Atomic mass
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15
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The nuclear reactors used in nuclear power plants do not have the potential to....
Overheat & melt
Increase cancer rates
Cause explosions
explode like atomic bombs
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15
×
The combining of 2 small atoms to form a larger different atom is called...
Fission
Half Life
Fusion
Combustion
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15
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What could happen as a result of "loss of Coolant accident"?
Overheating of the reactor core
radioactive water release
Nuclear explosion
Cooling of the reactor
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15
×
In 1987, US Congress selected this site for long term disposal of high level radioactive waste.
Miami, Florida
Yucca Mountain, Nevada
Portland, Maine
Carlsbad, New Mexico
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15
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Which of the following would not be a source of natural background radiation
radium gas
cosmic rays from space
reprocessing plants
rock and stone
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15
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Unstable radioactive isotopes are called ....
atomic particles
Radioisotopes
Basic radiation
Fusion
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15
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The process of separating U238 from U235 is called .......
moderation
Nuclear fission
Enrichment
Half life
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15
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The splitting of a large atom of one element into smaller atoms of different elements is called
Fission
Fusion
Breeder slaws
Combusion
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15
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Reprocessing of spent fuel rods is a way to
Recycle the half-life of the nucelar waste
Recycle the energy of the nuclear fuel
recover plutonium & left of U235 which can be used as fuel
Reduce the half life of nuclear waste
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boom
Lose 50 points!
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rocket
Go to first place!
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fairy
Take points!
5
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20
25
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thief
Give points!
5
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20
25
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thief
Give points!
5
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15
20
25
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magnet
Take 15 points!
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fairy
Take points!
5
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25
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baam
Lose 25 points!
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seesaw
Swap points!
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gift
Win 10 points!
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fairy
Take points!
5
10
15
20
25
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thief
Give points!
5
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25
15
×
The hazards of radioactive wastes are...
They do not dissolve well in the ground
Give off strong radio signals
Give off radiation that damage cells and lead to mutations
nonhazardous
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