____________________ is the most polluting fossil fuel but is cheap, abundant, and readily retrieved.
Fill in the blank(s) with the appropriate word(s).
Coal
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Earthquake motion occurs due to rock ____
a. ?deformation b. ?rupture c. ?stress d. ?strain e. ?elasticity
The tropical wet-and-dry climate is influenced mainly by the ____
A) polar front and the subtropical highs B) polar front and the ITCZ C) subtropical highs and polar front D) ITCZ and subtropical highs
The San Andreas Fault separates which two plates?
a. Laurasian and Gondwanan b. North American and Pacific c. North American and Eurasian d. North American and South American
Character displacement can result from all of the following EXCEPT ________
A) intraspecific competition B) natural selection C) interspecific competition D) the use of limited resources by multiple species E) resource partitioning