The IUCN's Red List is ________
A) an identification list of known species
B) a scorecard of international failures at conservation
C) an updated list of species facing unusually high risk of extinction
D) a list of ecologically harmful invasive species
E) a list of unidentified species
C
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) According to Ratzel's theory of the state, imperialism emerges from the need for territorial expansion tied to
A) population growth. B) centrifugal forces. C) low rates of natural increase. D) irredentism. E) a new world order
Moh's scale is defined on the basis of minerals that have different
A. shapes. B. colors. C. hardnesses. D. cleavage directions.
The Pew Hispanic Center estimated that there were ________ unauthorized immigrants living in the United States in 2010
A) 22 million B) 15.7 million C) 11.2 million D) 7.8 million E) 3.8 million
What is a major contributor to coastal erosion jeopardizing human property?
a. The diverting and damming of rivers b. The dredging of bays c. The building of breakwaters d. The creation of jetties