Examlex
During Jefferson's second term, the main problem the United States faced in foreign affairs was __________.
Desert Crusts
Biological crusts formed by a community of microorganisms, including cyanobacteria, algae, and fungi, which stabilize desert soils and prevent erosion.
Nitrogen Fixation
Incorporation of nitrogen gas into ammonia.
Western Coast
The land along the western edge of a continent, facing the ocean or sea.
Chaparrals
A biome characterized by dense, spiny shrubs and a Mediterranean climate, with hot, dry summers and cool, wet winters, found in regions like California.
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