The atmospheric portion of the biosphere occurs in the
A) heterosphere. B) lithosphere. C) troposphere. D) ozonosphere.
C
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This fish was thought to be extinct, but, in 1938, a living specimen was found off the coast of
Madagascar:a. ginkgo d. mosasaur b. sphenopsid e. coelacanth c. tetrapod
Large crystals found in a fine-grained groundmass can indicate:a
origin from a magma with an early intrusive phase followed by an extrusive phase. b. origin from a magma with an early extrusive phase followed by an intrusive phase. c. a rock of mixed volcanic-plutonic origin. d. origin from a magma with an early intrusive phase followed by an extrusive phase AND a rock of mixed volcanic-plutonic origin. e. origin from a magma with an early extrusive phase followed by an intrusive phase AND a rock of mixed volcanic-plutonic origin.
What did the German Meteor expedition discover during their 1925 crisscross across the South Atlantic for 2 years?
A) ?a completely flat ocean floor B) ?the deepest part of the ocean's deepest trench C) ?a varied and often extremely rugged bottom profile D) ?evidence for seafloor spreading and plate tectonics
Capping inversions are a sure sign that thunderstorms will occur
Indicate whether the statement is true or false