The least dense portion of the solid Earth is the:
A) core. B) mantle. C) center. D) crust.
D
Environmental & Atmospheric Sciences
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The igneous feature shown in this photograph is a
A) dike.
B) sill.
C) volcanic neck.
D) batholith.
Environmental & Atmospheric Sciences
Approximately how much of the world's estimated oil and gas reserves can be found within the sediments of the continental margins?
A) One-third B) One-half C) Two-thirds D) Three-quarters
Environmental & Atmospheric Sciences
At the end of the Mesozoic, large _____ were taking place in what is now India
A)mass extinctions B)outpourings of lava C)meteor impacts D)transgressions E)regressions
Environmental & Atmospheric Sciences
Bacterioplankton includes which of the following?
A. protists B. eukaryotes C. viruses D. archaea E. None of these
Environmental & Atmospheric Sciences