What do many deep water organisms use for feeding and the attraction of mates?

A) Keen eyesight
B) Bioluminescence
C) Sense of smell
D) Electrical impulses


B

Environmental & Atmospheric Sciences

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Traditional fishing provides low incomes, but these activities employ about ________ of the world's fishermen

A) 30 B) 60 C) 80 D) 90

Environmental & Atmospheric Sciences

Subsidence increases stability. Indicate whether the statement is true or false

Environmental & Atmospheric Sciences

Deep-well injection of hazardous wastes has the advantage that

A) it falls under the umbrella of the Superfund Cleanup (SARA). B) injected materials can easily be recovered for further treatment. C) solids, liquids and gases can be disposed with this technology. D) the deep-injected liquids should not contaminate ground water or surface ecosystems.

Environmental & Atmospheric Sciences

Why is it so difficult to interpret the geology of the Precambrian? How are these difficulties or limitations different in the younger eras of the Phanerozoic Eon? Finally, are there unique rocks or events in the Precambrian that are not present in

younger rocks?

Environmental & Atmospheric Sciences