What is Darcy's law?
a. A fundamental law in hydrology that defines the groundwater velocity
b. A law defining the relationship between porosity and permeability of rocks
c. A fundamental law in hydrology that defines energy conservation
d. A law calculating permeability of rock given the fluid viscosity and rock property
Answer: a. A fundamental law in hydrology that defines the groundwater velocity
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The Red Sea was created when
A. two tectonic plates pulled apart and formed a rift valley. B. three tectonic plates converged and created a depression. C. increased carbon in the atmosphere created more rainfall in the area. D. the Arabian peninsula crashed into Southwest Asia 25 million years ago.
Consider the isotherm map of the United States shown above. Which of the following statements best describes the area between Las Vegas, NV, and Palm Springs, CA?
A) This area exhibits one of the greatest temperature gradients on the map. B) The average temperature in this area is below freezing. C) One would expect to encounter a temperature of 40°F if driving from Las Vegas to Palm Springs. D) This area exhibits one of the lowest temperature gradients on the map.
Weather forecasts are commonly grouped according to how far into the future the forecast extends
a. True b. False
When studying a particular mineral, the first thing one usually notices is
a. size b. shape c. mass d. color