In highly viscous, felsic magma, if expansion is inhibited and gas pressure increases. Eventually, the pressure may become great enough to cause a(n) ____________________
Fill in the blank(s) with correct word
explosioneruption
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An artesian aquifer occurs where ________
A) a water-bearing layer is trapped between two layers that are less permeable B) granite is overlain by a sandy substrate, allowing percolation into the aquifer C) a well is dug through layers of sand and gravel into the water table D) several aquifers have merged E) a water-bearing porous layer of rock, sand, or gravel has accumulated groundwater over a long period of time
Acid deposition is most likely to occur
A. where the soil is already acid. B. down wind of a coal fired power plant. C. in mountainous areas. D. in forested areas.
The refractive index of seawater:a
is greater than freshwater. b. is less than freshwater. c. is equal to freshwater. d. decreases with increasing salinity
Judge the following sentence according to the criteria given below: The same waves break against both headlands and in nearby bays, but their energy is different BECAUSE wave reflection causes the distribution of wave energy to change between them
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.