How did the Cenozoic conditions of eastern and western North America differ?
The east was dominated by erosion, while in the west, tectonism yielded a number of basins that became the sites of sediment deposition.
Environmental & Atmospheric Sciences
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Which section of a stream is characterized by the absence of fish and found downstream from the release of oxygen-demanding wastes and heat?
A. clean zone B. decomposition zone C. septic zone D. recovery zone E. dead zone
Environmental & Atmospheric Sciences
Complex carbohydrates are a type of ____.
A. lipid B. chemical formula C. monomer D. protein E. organic polymer
Environmental & Atmospheric Sciences
A mirage that changes the apparent size of an object is called:
A) towering. B) magnification. C) looming. D) dispersion.
Environmental & Atmospheric Sciences
The Paleozoic Era began approximately ________ years ago.
A. 252 million B. 2.6 million C. 531 million D. 65 million E. 4.55 billion
Environmental & Atmospheric Sciences