Comparing these two photographs, which eruption has lower viscosity magma?
A) The fluid cascade of lava
B) The circular volcanic feature
C) They could have the same viscosity.
D) There is no way to tell.
A) The fluid cascade of lava
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Explain, in the context of the rock cycle, how a metamorphic rock can become sedimentary rock again. What will be an ideal response?
Species richness is affected by many variables. As one travels toward higher latitudes, one would expect ________
A) species richness to be fairly constant B) population viability to increase C) species richness to increase D) species richness to decrease
About 150 years ago, agriculture underwent a revolution due to
A) genetic engineering of new crops. B) the development of new herbicides and pesticides. C) the industrial revolution, which brought changes in agricultural technology. D) new markets that emerged from increased international trade.
The price and availability of chemical fertilizers is strongly influenced by
A. the price of oil on the world market. B. the price a farmer receives for his crop. C. the amount of rain received in any given growing season. D. None of these are correct.