Dark-light couplets of sedimentary laminations representing an annual deposit in a glacial lake are
____________________. Fill in the blank(s) with the appropriate word(s).
varves
You might also like to view...
the banding characteristic of metamorphic rocks is ________.
a - uniformitarianism b - stratification c - foliation d - relief e - magma
Demographically, Latin America has grown much faster than North America. What factors contribute to its faster growth, and is this growth likely to continue?
What will be an ideal response?
Ll but one of the following would cause an increase in the erosive effectiveness of stream flow: ________
A) steepen the stream gradient B) decrease of turbulence C) increase in channel roughness D) decrease the resistance of the bedrock E) increase the flow speed
The ozone thinning ("hole") that occurs in the upper atmosphere over each pole in winter is due primarily to
A. chlorofluorocarbons. B. global warming. C. lack of solar ultraviolet energy reaching the pole. D. volcanic eruptions.