Nuclear fission occurs when a high-energy subatomic particle, a neutron, strikes a uranium atom, releases energy, and
A. Releases neutrons
B. Releases protons
C. Combines with another neutron to release even more energy
D. Breaks in half, causing another atom to break
E. Releases an electron in a gamma wave
Answer: A
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Mercury is not readily excreted but rather is stored in animal body tissues. This is an example of ________
A) biomagnification B) bioaccumulation C) toxification D) distillation
The main difference between conglomerate and breccia is
A. the kind of cement. B. the sorting of the clasts. C. the size of the clasts. D. the shape of the clasts. E. All of these.
The persecution of Muslims and Jews in Europe is a relatively new phenomenon, arising during the 20th century
a. True b. False Indicate whether the statement is true or false
Technological optimists argue that technological advances have:
A. Been a neutral factor in the issue of population growth B. Been developed because there are more people, supporting the view that more people are the "ultimate resource." C. Proved Marx wrong in his predictions of famine and disaster D. Proved Malthus wrong in his predictions of famine and disaster E. Led to the increase in human population, but whether we can continue is of great concern