the proof for the long- doubted idea of drifting continents came in the form of _______.
a - understanding of mountains
b - glacial ice
c - animal distributions
d - analysis of magnetic and seismic patterns
e - observation of coastlines
d - analysis of magnetic and seismic patterns
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Which of the following best matches the description?Accumulation of potential acid-forming particles on a surface.
A. greenhouse effect B. ozone C. acid deposition D. primary air pollutants E. radon F. oxides of nitrogen G. photochemical smog H. particulates I. thermal inversion J. sulfur dioxide K. secondary air pollutants
If expansive soils and subsidence are included, total losses from mass wasting in the U.S. are many
times greater than the annual combined losses from earthquakes, volcanoes, floods, hurricanes, and tornadoes. Indicate whether the statement is true or false.
Oregon's strong policy of enforcing UGB's (urban growth boundaries) to create livable cities has been exemplary for many years, but between 2004 and 2007, voters ________
A) voiced their desire to have a state as populous as neighboring California B) have gone further by passing a bill capping population in all major cities C) passed legislation forbidding the construction of any new single-family homes D) passed a bill promoting unregulated development everywhere in the state E) passed a bill giving property owners the right to ignore UGB's
In cultural eutrophication, fish die from ____.
A. acid deposition B. depletion of oxygen C. toxic substances in the water D. increased sediment reducing habitats E. loss of space