Flood hydrographs tend to peak sooner and higher downstream from urbanized areas than prior to
urbanization. Indicate whether the statement is true or false.
T
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Explain how radioactive decay has always warmed the earth from the inside, and nuclear fusion has always warmed the earth from the outside
A) Much heat was released as matter coalesced to form the earth. This heat resulted in the production of radioactive isotopes, which still reside within the earth today and are a source of internal heat. Our primary external source of heat is from the fusion of hydrogen within the sun. B) The inner Earth is made of fissioning heavy elements while the sun is made of lighter fusing elements. C) Radioactive elements have been within Earth since it was created while the sun is made of fusing hydrogen atoms. D) All of the above are reasonable answers.
Which of the following correctly lists metamorphic mineral assemblages in order of decreasing
temperature/pressure of formation? a. chlorite, biotite, garnet, staurolite, kyanite, sillimanite b. biotite, garnet, chlorite, staurolite, sillimanite, kyanite c. garnet, biotite, chlorite, sillimanite, staurolite, kyanite d. sillimanite, staurolite, kyanite, garnet, biotite, chlorite e. sillimanite, kyanite, staurolite, garnet, biotite, chlorite
As a rule, desert nights are:
a. warmer than those of humid climates of the same latitude. b. only slightly different in temperature from desert days. c. cloudier than the days, creating a marked "greenhouse effect" to slow down outward radiation. d. significantly lower in temperature than desert days.
Short duration, high intensity rainfall is associated most often with ____
a. a cold front b. a warm front c. orographic lift d. a stationary front