Unit Test — Unit test Answers

25 verified answers
22
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What is the source of almost all energy on Earth?

A
Earth’s hot core
B
the Sun
C
stored carbon
D
moving water
23

Which best describes a chain reaction associated with a nuclear reaction?

A
Neutrons released during a fusion reaction cause other nuclei to fuse.
B
Neutrons released during a fission reaction cause other nuclei to split.
C
Helium nuclei released during a fission reaction cause other nuclei to split.
D
Helium nuclei released during a fusion reaction cause other nuclei to fuse.
24

Which environmental hazard is directly related to nuclear power production?

A
land stripping
B
global warming
C
radiation leakage
D
soil erosion
25

A target is shielded from a radioactive sample by a sheet of metal. What kind of radiation can pass through the sheet of metal and hit the target?

A
gamma rays only
B
gamma rays and beta particles
C
beta particles only
D
beta particles and alpha particles

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