Through which of the following routes can radon enter houses?
1) Crawl spaces under living areas
2) Floor drains and sump pumps
3) Porous cement block foundations
A) 1 and 2 only
B) 1 and 3 only
C) 2 and 3 only
D) 1,2,and 3
Correct Answer:
Verified
Q12: Cosmic radiation occurs in which two forms?
A)Solar
Q13: Acute melting of the uranium dioxide fuel
Q14: Terrestrial radiation includes which of the following
Q15: What is the most common unit of
Q16: In the electromagnetic spectrum,higher frequencies are associated
Q18: Which of the following is considered by
Q19: The first decay product of radium is
A)cesium.
B)radon.
C)strontium.
D)x-ray.
Q20: When spread over the inhabitants of the
Q21: The mass of an alpha particle is
Q22: What is the half-life of radon-220?
A)54.5 seconds
B)8
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