Until what year were the U.S. and Europe the leading producers of steel, accounting for 90% of output?
A) 1945
B) 1959
C) 1968
D) 1973
E) 1985
D
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When clay minerals in a shale are subjected to elevated temperature and pressure, they may change in the solid state (that is, without melting) to form platy minerals like ________ that are at equilibrium with the new temperature/pressure conditions.
A. carbonate B. mica C. amphibole D. pyroxene E. feldspar
What is true about water’s phase changes and latent heat?
A. When water freezes, latent heat is absorbed. B. When water evaporates, latent heat is released. When water condenses, latent heat is absorbed. D. When water melts, latent heat is absorbed. E. When water sublimates, latent heat is released.
On a typical day, the point of highest relative humidity is associated with
A) solar noon. B) the time of the lowest temperature. C) the time of the highest temperature. D) dusk.
What is the effect of temperate on vapor pressure?
a. As temperature increases, vapor pressure increases b. As temperature increases, vapor pressure decreases c. As temperature decreases, vapor pressure increases d. It varies with properties of the specific material