Describe how the H-R diagram is used to determine which stars are "giants."
What will be an ideal response?
Giants appear in the upper right-hand side of the H-R diagram, which shows stars with low surface temperature and high luminosity.
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By definition, stocks differ from batholiths in
A. shape B. size C. chemical composition D. all of the preceding
The amount of solar radiation reaching the Earth's surface is dependent on:
a. intensity of radiation. b. duration of radiation. c. both of these d. none of these
Ignoring migration, the age structure of a human population likely to decrease in size will have what shape?
a. inverted pyramid b. pyramid c. Both a pyramid and a rectangle tapering toward the top result in a population that decreases in size. d. a rectangle tapering toward the top e. Both an inverted pyramid and a rectangle tapering toward the top result in a population that decreases in size.
Thunderstorms occur year-round in the:
A) subarctic regions. B) middle latitudes. C) subtropics. D) polar regions. E) tropics.