Ozone in the upper atmosphere selectively absorbs _______ wavelengths.
Fill in the blank(s) with the appropriate word(s).
Answer: ultraviolet
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A common pulley is effectively a
A. hydraulic press. B. common lever. C. tension producer. D. gear.
) In North American cities, distant suburbs are often preferred by the affluent and poorer households occupy high-density areas near the city center. Thus, the trade-off model accounts for the trade-off between
A) accessibility and space. B) congregation and segregation. C) invasion and succession. D) edge cities and central business districts. E) nature and society
A plutonic rock results from
A) hydrothermal activity. B) volcanic activity. C) clastic processes. D) slow cooling beneath the earth's surface.
Shortage of clean water is one of the most easily fixed problems in LDCs (less developed countries)
Indicate whether the statement is true or false