Which of the following nations (or islands) has lost almost all of its forest cover?
A) Dominican Republic
B) Haiti
C) Cuba
D) Puerto Rico
E) Belize
B) Haiti
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Marine life can recover from crude oil spills most rapidly in
A. cold and calm waters. B. warm waters with rapid currents. C. cold waters with rapid currents. D. warm and calm waters. E. estuaries.
Match the following examples with the correct geologic principle/event
A) Undeformed sequence of sandstone on bottom, shale in the middle, and conglomerate on top. B) Marine shale sits atop folded strata. C) Trilobite is used to match shale units across an ocean basin. D) Igneous dike intrudes into a sequence of sandstone, shale, and limestone. E) Continuous layer of shale eventually thins out, grading into sandstone. F) Sandstone sits atop a granite intrusion and pieces of the granite are contained within the sandstone. G) Rock layers have been tilted or folded, are not lying flat. H) Sandstone outcrop is submerged underwater, then overlain by shale. I) Conglomerate sits atop a granite intrusion. 8) disconformity 9) nonconformity 10) angular unconformity 11) principle of superposition 12) principle of original horizontality 13) principle of lateral continuity 14) principle of cross-cutting relationships 15) principle of inclusions 16) principle of fossil succession
The more the silica in magma, the lower the viscosity
Indicate whether this statement is true or false.
Which of the following statements is true?
A. Overall, in the past twenty years, air pollution conditions have steadily decreased in most North American and Western European cities. B. Nearly all emissions of sulfur compounds are anthropogenic. C. Volatile organic compounds are produced exclusively by human activity. D. Most carbon monoxide produced in the United States comes from internal combustion engines (cars). E. None of these is correct.