Ozone can be created by all of the following processes except
A) sunlight acting on hydrocarbons.
B) scattering by UV-B and UV-C radiation.
C) lightning during thunderstorms.
D) UV-C radiation in stratosphere.
B) scattering by UV-B and UV-C radiation.
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What did the author of the following quote mean?
"The result, therefore, of our present enquiry is, that we find no vestige of a beginning -- no prospect of an end." A) James Hutton had postulated the age of the Earth, and it was considerably older than most scientists imagined. B) Unconformities, nonconformities, and the slow rate of erosion defined Earth as much older than religious leaders and scientists of the time believed. C) The water cycle had a much greater scope and a capacity of hidden water than scientists had imagined. D) Rocks had been transforming through the rock cycle for billions of years and could be expected to continue to do so for billions of years more.
How can limestone be dissolved by groundwater when it is almost insoluble in pure water? How does
this happen? What will be an ideal response?
Wave speed of deep-water waves depends only on ________
A) wave drift B) wave frequency C) wave period D) waveform E) wavelength
A soil that has little or no O-horizon but a thick accumulation of calcium carbonate (caliche) most likely forms in
A. a short amount of time. B. a tropical climate. C. an area with abundant rainfall. D. an arid climate. E. a temperate climate.