The rate of movement of fluids through rocks can be predicted by the:
a. porosity
b. density
c. hydraulic conductivity
d. void ratio
c
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What major events happened in the Hadean Eon?
a. The planet was so hot that its surface was a magma ocean b. Underwent intense meteor bombardment c. Internal differentiation d. Formation of Earth's initial atmosphere e. All of the above
A steep-walled, bowl-shaped depression formed on a mountainside by glacial erosion:a
moraine d. ice cap b. striation e. cirque c. varve
Which set of data relating to the 1991 collapse of New Zealand's Mount Cook is correct?
A) The mountain was shortened by 10 m, the debris traveled for 7.5 km, and the avalanche traveled at speeds up to 200 km/h. B) The mountain was shortened by 2 m, the debris traveled for 0.85 km, and the avalanche traveled at speeds up to 20 km/h. C) The mountain was shortened by 100 m, the debris traveled for 75 km, and the avalanche traveled at speeds up to 800 km/h. D) The mountain was shortened by 60 m, the debris traveled for 50 km, and the avalanche traveled at speeds up to 100 km/h.
What is the best way to prevent the potential for urban flooding in the long term?
A. Protect urban forests B. Protect asphalt parking lots C. Build levees D. Build dams