What is a mathematical model?
a. A model used to predict future conditions of a climate
b. A model that uses equations to describe a system's behaviors
c. A model used to predict past conditions of a climate
d. The prediction of a factor's importance
ANS: B
There have been mathematical models used to predict the future state of our climate should we remain
on our current trajectory. These models can be applied to any system though. Information can be found
in the section Human Activity is Causing Global Oceanic Change.
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Which of the following is not a characteristic of a hypothesis?
A) indisputable B) testable C) accounts for existing data D) predicts future behavior or data
Which of the following is a provision of the current Agricultural Adjustment Act?
A. distribution aid B. plant hormones C. land replenishment D. forestry conservation programs
Which material will "float" higher on the mantle: 5 km thick oceanic crust or 40 km thick continental crust? Why?
What will be an ideal response?
If a slope in unconsolidated material is unstable due to high water content,
A. it may best be stabilized by covering the slope with impermeable material. B. it may be stabilized by steepening the slope angle. C. nothing can be done to modify the hazard. D. it may be dewatered by installation of drainage pipes.