The ________ is a type of very long dune which might form as an adjustment to two seasonal wind systems
A) barchan
B) crescent
C) transverse
D) blowout
E) seif or longitudinal dune
Answer: E
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Water flows into the cracks in a boulder and freezes. The water expands and pushes the rock apart. What surface process is this?
A) differential weathering B) fast weathering C) mechanical weathering D) chemical weathering
Magma that forms batholiths forms in the mantle and must migrate upward. However, the sedimentary and metamorphic rocks that surround these batholiths are only moderately deformed
How does a rising magma body make its way through several kilometers of solid rock to be emplaced as a batholith? (Start your journey in the mantle.) What will be an ideal response?
Methods for desalinating sea water to produce fresh water include ________
A) making sea water acid to transform salts to solids B) treating sea water with salt-consuming marine bacteria C) filtration and sedimentation D) treating with activated charcoal and clay E) reverse osmosis and distillation
According to the U.N. Environment Programme how many species have gone extinct in the past century?
A. Almost 100 B. Nearly 1,700 C. Over 250 D. More than 800 E. 563