The age of the universe is estimated by the:a
temperature of the universal background radiation.
b. age of comets formed in interstellar space.
c. rate at which galaxies are moving away from one another.
d. age of subatomic particles as determined by radioactive decay.
e. age of the sun.
C
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Water vapor is the primary carrier of:
A) small pox. B) latent heat. C) conductive heat transfer. D) radiative heat transfer.
Acute effects of a toxin appear
A. Long after exposure B. When there is sustained contact C. Immediately after exposure D. Only after repeated exposure E. To cause permanent damage if the individual survives the initial exposure
In addition to fossils, what are other types of evidence for evolutionary theory?
Most people are homeless because they
A) cannot afford housing and lack a regular source of income, perhaps because of job loss, mental illness, or family problems. B) cannot afford medicine and lack a middle-class source of income, usually because of mental illness, pregnancy, and family problems. C) fail to achieve the level of "survival of the fittest" as prescribed by social Darwinism. D) cannot afford a college education, which is required in order to obtain and maintain a steady job in the United States. E) are lazy or lack the kind of work ethic that wealthy people have.