Which of the following best matches the description?Disintegration of an atom's nucleus with the release of energy.
A. gamma radiation
B. light-water reactor
C. radiation
D. heavy-water reactor
E. nuclear fission
F. rem
G. thermal pollution
H. moderator
I. transuranic waste
J. alpha radiation
K. beta radiation
L. nuclear breeder reactor
M. radioactive half-life
N. nuclear fusion
O. decommissioning
P. U-235
Answer: E
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Which of the following is the main reason why Santa Ana winds are warm?
A. solar heating warms the air B. sinking air warms by compression C. latent heat is released in rising air D. condensation occurs
Recent research indicates that the variation in solar output ________
A) is more than 20 watts/m2 B) is less than any of the anthropogenic factors affecting climate change C) is the major factor driving temperature change D) is greater than all the anthropogenic factors affecting climate change E) will increase by a hundredfold over then next century
To calculate the rate of natural increase, geodemographers subtract the death rate from the birth rate and convert that figure to a percentage.
a. true b. false
The competence of a stream depends on:
a. stream velocity b. stream discharge c. area of the cross section of stream d. stream volume