What substitution did Glatzmaier and Roberts make in their model?
A) straight-angled rotation of Earth for its real tilted axis
B) average density in place of specific densities
C) the viscosity of water for the viscosity of the outer core
D) thermal convection for compositional convection
Answer: D
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The "tragedy of the commons" refers to a situation in which the cumulative effect of large numbers of people trying to exploit a widely available or shared resource can degrade it and eventually exhaust or ruin it.
Answer the following statement true (T) or false (F)
Which of the following statements is TRUE regarding the population pyramids of China and Japan?
A) Japan faces a critical shortage of young people in future generations.
B) Japan is growing faster than China.
C) Japan and China both have high birth rates.
D) Both Japan and China exhibit high growth.
E) Japan has a younger population than China.
A mineral-filled crack is called:
a. A fault b. A fissure c. A vein d. A joint
Taller trees in tundra climates may increase albedo
Indicate whether the statement is true or false