Which type of basaltic lava flow has a fairly smooth, unfragmented, ropy surface?
A) aa B) pahoehoe C) pegmatitic D) scoria
B
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Discuss the major Early Paleozoic transgressions and regressions in North America. How did
these transgressions and regressions shape the geologic character of North America today? Give examples of specific features caused by these transgressions and regressions. What will be an ideal response?
Unlike naturally occurring sources of acid precipitation, anthropogenic sources of acid precipitation
A) are more concentrated in industrial and agricultural areas. B) result in the extended release of radon gas. C) include sulfur oxides and nitrogen oxides. D) occur at higher levels of pH.
Construction in areas with permafrost is challenging and often buildings are elevated on columns or stilts to prevent thawing the underlying permafrost
Indicate whether the statement is true or false
The tropical climate and the archipelago nature of Indonesia supports the most biodiversity in the world.
a. true b. false