The natural background radiation we personally encounter is
A) a trace amount.
B) about a quarter.
C) about half.
D) more than half.
Correct Answer:
Verified
Q20: The sources of X-rays are
A)electron clouds.
B)the atomic
Q21: Cosmic rays originate in the
A)Earth's interior.
B)Earth's upper
Q22: The radiation source closest to us originates
Q23: Once an alpha particle is outside the
Q24: A nucleon is either a
A)positron or an
Q26: What must you do to get away
Q27: Generally speaking, the larger a nucleus is,
Q28: The mass of an atomic nucleon is
Q29: The helium in a child's balloon is
Q30: Most of the radioactivity we personally encounter
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