The Earth subsystem that represents the circulation of Earth's water throughout the hydrosphere, atmosphere, biosphere, and geosphere is know as the:
A) aquasphere. B) water rotation. C) evaporative cycle. D) hydrologic cycle.
D
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When populations spread out from urban centers creating conurbations, the Census Bureau created the term ________ to describe these areas
A) metropolitan statistical areas B) major urbanized regions C) agglomeration D) high density rural areas
Since the 1990s, ________ have killed an estimated 30 billion conifers in the western United States
A) pine shoot beetles B) bark beetles C) foresters D) ladybird beetles E) invasive fungi
Meteorologists use all of the following to compute the sea-surface temperature for the Eastern Pacific, except
A) a persistence model. B) an analog statistical model. C) a numerical model. D) a "canonical" statistical model using correlations measured over time and space.
Traditional shifting cultivation has many advantages over commercial agriculture: no chemical fertilizers, herbicides, or pesticides are used and energy is provided by humans or draft animals rather than fossil-fuels.
Answer the following statement true (T) or false (F)