The rapid warming associated with the Paleocene-Eocene Thermal Maximum (PETM) likely resulted from
A) decreased surface albedo brought about by Paleocene afforestation.
B) the sudden die off of photosynthetic organisms and associated increase in atmospheric CO2.
C) a sudden increase in atmospheric carbon.
D) several massive volcanic eruptions.
C
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Horizontal air flow in a hurricane is
A) clockwise at surface, counter-clockwise aloft. B) clockwise throughout the entire vertical depth of the storm. C) counter-clockwise throughout the entire vertical depth of the storm. D) counter-clockwise at the surface, clockwise aloft.
?Match the term with the correct description.
A. ?the catching of unwanted fish B. ?area of ocean needed to sustain the fish consumption of an average person, a nation, or the world based on the weight of fish they consume annually C. ?when it is no longer profitable to continue harvesting a species of fish D. ?smaller marine species such as anchovies, herring, sardines, and shrimp-like krill E. ?the catching of surface-dwelling species such as tuna, mackerel, anchovies, and herring
All minerals have a unique combination of internal structure and chemical composition. The structure and chemistry of minerals determines which of the following?
A. Whether minerals form on the surface or deep within the crust. B. Where minerals are found in the crust. C. The physical and chemical properties of minerals. D. The grain size of minerals. E. Whether minerals form from magma or water.
The major source of anthropogenic sulfur dioxide emissions is the burning of fossil fuels
Indicate whether the statement is true or false