Ground that remains permanently frozen is called ____________________
Fill in the blank(s) with correct word
permafrost
Environmental & Atmospheric Sciences
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The evolution of a large number of species, each adapted to a distinct way of life, from a single ancestor describes
A. allopatric speciation. B. sympatric speciation. C. adaptive radiation. D. polyploidy.
Environmental & Atmospheric Sciences
In the United States, Spanish-speakers make up approximately what portion of non-English-speakers?
A) 20 percent B) 30 percent C) 50 percent D) 60 percent
Environmental & Atmospheric Sciences
An example of disunity in Europe that has resulted in much violence is the breakup of:
A) the United Kingdom B) Yugoslavia C) Italy D) Romania
Environmental & Atmospheric Sciences
Sections of bedrock streams tend to steepen abruptly at locations called _______________
Fill in the blank with correct word.
Environmental & Atmospheric Sciences