Neoproterozoic glacial deposits are found on all continents except _______. Fill in the blank(s) with the appropriate word(s)
Antarctica
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A factor that can influence earth's temperature but not be influenced by humans is
A) aerosol concentration. B) atmospheric albedo. C) surface albedo. D) variations in solar radiance.
A radio ad is promoting the increased use of E85 fuel as being economically and environmentally beneficial. There is no mention of disadvantages. You should be skeptical of this ad because ________
A) ethanol fuel may lead to an increase in food prices B) fossil fuels are required to produce the ethanol required for this blend C) only certain cars are designed to run on this fuel blend D) it may take more energy to produce the ethanol than it contains E) All of these are reasons to be skeptical.
Florida is the site of active ____________________ deposition. What will be an ideal response?
Before the time of initial settlement by Polynesians, Easter Island had all but which of the following?
A. no permanent streams B. several species of native terrestrial mammals C. about 30 native plant species D. high temperatures and humidity E. poorly drained and marginal soils