What is NOT a valid proxy measure for past climates?
A. trends in human population
B. oxygen-isotope ratios
C. dendrochronology
D. paleoclimatology
E. fossilized pollen and coral
A
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To minimize heat loss it is best that a teapot be
A. black. B. silver. C. depends on size, not color D. not enough information
The solar nebula theory of the formation of the solar system accounts for the differences in composition between the terrestrial and Jovian planets
Indicate whether the statement is true or false
The invention and production of automobiles had which of the following effects?
A. an increased need for roads B. it resulted in the industrial revolution C. decreased need for labor D. All of these are correct
The angle of repose represents a balance between gravity, friction, and shear
Indicate whether the statement is true or false