Under most circumstances the density ________ with increasing altitude
A) decreases
B) increases
C) remains constant
Answer: A
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Which of the following are ways in which a geologist may determine the density of earth materials?
A. by measuring the different velocities of seismic waves B. through direct measurement in the laboratory C. using instruments to measure the pull of gravity D. All of these choices are correct.
Removal of ________ will always result in the greatest changes in an ecological system
A) a competitive species B) a decomposer species C) a producer species D) a keystone species E) a carnivore species
Earth's radiative equilibrium temperature is the
a. average temperature at which Earth is absorbing solar radiation and emitting infrared radiation at equal rates. b. average temperature at which Earth is radiating energy at maximum intensity. c. average temperature Earth must maintain to prevent oceans from freezing solid. d. temperature at which rates of evaporation and condensation on Earth are in balance. e. temperature that humans and animals can survive in on Earth.
What is the driving force behind mass wasting?
A. distance B. weight C. compression D. gravity E. stress