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Questions and Answers
Salinity can be measured by passing an electric current between the two electrodes of a ______ in a sample of soil or water.
Salinity can be measured by passing an electric current between the two electrodes of a ______ in a sample of soil or water.
salinity meter
The ______ of a soil or water sample is influenced by the concentration and composition of dissolved salts.
The ______ of a soil or water sample is influenced by the concentration and composition of dissolved salts.
electrical conductivity
[Blank] rocks are more radioactive than most sedimentary rocks.
[Blank] rocks are more radioactive than most sedimentary rocks.
Igneous and certain metamorphic
Exposure to elevated ______ levels can occur during rare earth production.
Exposure to elevated ______ levels can occur during rare earth production.
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The level of potential hazard from radioactive minerals depends on the type of ______ and its half-life.
The level of potential hazard from radioactive minerals depends on the type of ______ and its half-life.
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Salty water has an ______ potential too high for freshwater biota and most terrestrial plants to survive.
Salty water has an ______ potential too high for freshwater biota and most terrestrial plants to survive.
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[Blank] water has a salt concentration of about 10% of seawater's salt concentration.
[Blank] water has a salt concentration of about 10% of seawater's salt concentration.
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Careful management of ______, overburden and groundwater discharges is required to ensure that the environmental impacts of salinity are avoided.
Careful management of ______, overburden and groundwater discharges is required to ensure that the environmental impacts of salinity are avoided.
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[Blank] is deposited with the waste rock in overburden or waste.
[Blank] is deposited with the waste rock in overburden or waste.
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Radioactivity increases in ______ orebodies.
Radioactivity increases in ______ orebodies.
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