Which of the following definitions describes a chemical hazard?
a. can be present in dust, fu...
Which of the following definitions describes a chemical hazard?
a. can be present in dust, fumes, liquids, solids, mists, vapors, or gases of products used at a site or released during a construction job
b. microorganisms, such as bacteria, fungus, mold, or viruses that can cause illness
c. the most commonly thought of hazards for construction
d. these hazards can lead to injuries to the joints or muscles by way of heavy, frequent lifting, repetitive tasks
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Americium-241 undergoes fission to produce three neutrons per fission event. if a neutron-absorbing material is mixed in with this sample so that the rate of neutron production drops down to 1.8 neutrons per fission event, which will be effective at achieving a critical mass? check all that apply. remove a deflective shield surrounding the sample. remove absorbent material mixed in with the sample. compress the sample of americium-241.
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