The __________ cuts across the southern edge of the Sahara Desert at the widest portion of the continent.
a. Tropic of Cancer
b. Tropic of Capricorn
c. African Transition Zone
d. none of these
e. Equator
c. African Transition Zone
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The two subclasses of bony fish are ____ and ____
a. ray-finned; spiral-finned b. ray finned; lobate-finned c. ray-finned; lobe-finned d. lobate-finned; radial-finned e. spiral-finned; radial-finned
The universal soil loss equation was designed to predict erosion:
a. in and along river channels b. of urbanized land c. by wind d. of agricultural land
Which of the following choices represents a rate of seafloor spreading commonly associated with a ridge such as the Mid-Atlantic Ridge?
A) 1-5 mm/yr B) 1-5 cm/yr C) 1-5 m/yr D) 1-5 km/yr
Which of the following is not an effect of plate tectonics?
A) Earthquakes B) Warping C) Faulting D) Volcanic activity E) Mass wasting