Around the world, rockfalls are expected to become more common because of increased ________
A) earthquakes
B) droughts
C) temperatures
D) tectonic mountain building
E) human population
Answer: C
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________ refers to sand grain movement in a series of short leaps or bounces off the bottom.
A. Hopping B. Saltation C. Vaulting D. Floating E. Jumping
Several companies manufacture large world globes for display in museums, corporate lobbies, and science exhibit halls. If such a globe featured a diameter of 4 m (13 ft), what is the scale of this globe expressed as a representative fraction? (Show your work.) (Hint: Earth’s equatorial diameter = 12,756 km [7926 miles].)
What will be an ideal response?
What type of reef is a ring-shaped island of coral?
A) Fringing B) Barrier C) Atoll D) Mangrove
What type of desert is associated with upwelling ocean currents?
a. polar b. subtropical c. rain shadow d. midlatitude e. coastal