The initial growth of northern continental glaciers that occurred between 3 million and 2.7 million years ago coincided with the formation of the Isthmus of Panama.
Answer the following statement true (T) or false (F)
True
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The United State can export its electronic waste legally simply because it has not ratified the Basel Convention.
Answer the following statement true (T) or false (F)
If an area in the upper atmosphere is undergoing convergence, ____ is most likely occurring at Earth's surface below
a. convergence b. divergence c. rain d. snow
Which of the following would be classified as a pollutant by the World Health Organization?
a) natural oil seeps b) mercury leaching from undersea rocks c) warmer than normal surface water from El Nino causing widespread coral death d) sediments dumped into nearshore water by coastal construction e) all of the above
The water vapor–greenhouse feedback represents a positive feedback mechanism
a. True b. False