Traditional fishing provides low incomes, but these activities employ about ________ of the world's fishermen
A) 30
B) 60
C) 80
D) 90
Answer: C
Environmental & Atmospheric Sciences
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Which layer is thought to be the birthplace of deep mantle plumes?
A) Transition zone B) Outer core C) D" layer D) Shadow zone
Environmental & Atmospheric Sciences
What was the costliest natural disaster in U.S. history?
A. The Loma Prieta earthquake B. The Boxing Day tsunami C. Hurricane Hugo D. Hurricane Katrina
Environmental & Atmospheric Sciences
During the hydrologic cycle, water infiltrates the ground and then becomes groundwater. Hence groundwater can come from:
a. precipitation percolating through soils and sediment b. streams, lakes, and snowmelt that infiltrate c. seawater that evaporates d. all of the above e. both a and b
Environmental & Atmospheric Sciences
What submarine oceanic features are circled in this image?
A) Seamounts B) Deep-sea fans C) Rift zones D) Faults
Environmental & Atmospheric Sciences