Language spread can be a reflection of which spatial diffusion process?
A. relocation diffusion
B. hierarchical diffusion
C. expansion diffusion
D. all of these
E. none of these
Answer: D
Environmental & Atmospheric Sciences
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gamma ultraviolet radio infrared
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What caused the glacial expansion that occurred in the 18th to early 19th century?
A) efforts to prevent global warming B) "The Little Ice Age" C) a decrease in the use of fossil fuels D) a decrease in sea level
Environmental & Atmospheric Sciences
Zooplankton are always ________.
A. animals B. heterotrophs C. multicellular D. All of these are correct. E. None of these is correct.
Environmental & Atmospheric Sciences
Sections of bedrock streams tend to steepen abruptly at locations called _______________
Fill in the blank with correct word.
Environmental & Atmospheric Sciences