What created the Dust Bowl?
A. Intense land cultivation
B. Both a drought and intense land cultivation
C. The drying up of the Ogallala Aquifer
D. A large, engineered water diversion
E. A drought
Answer: B
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A student comments, "The shadow zone is an area where waves cannot travel because it is a thick layer of liquid at the boundary of the mantle and the outer core." Evaluate this statement
A) Actually, it was the boundary of the inner core that was discovered with this method. B) It is correct that waves cannot travel in liquid. C) P-waves refract at the shadow zone. S-waves are stopped. D) The shadow zone refers to the whole outer core, not just the boundary.
What are the major problems that exist with, or are related to, groundwater supply? What will be an ideal response?
Instructions: Choose one answer from each pair of selections. One idea for weakening a hurricane is to place some form of oil (monomolecular film) on the water to INCREASE | DECREASE the rate of evaporation and hence cut down on the release of latent heat inside the clouds
The Milky Way is a galaxy some ________ light years in diameter
A) 10 B) 100 C) 1,000 D) 10,000 E) 100,000