Which of the following is not an example of a biotic component of an ecosystem?

A) plants
B) mineral nutrients
C) decomposers
D) carnivores
E) herbivores


B

Environmental & Atmospheric Sciences

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This figure has rock units and geologic features that are assigned letters that are not in any particular order. From the geologic relations, what is the oldest unit or feature of those listed below?



A) The canyon (feature N)
B) Lava flow (unit L)
C) Dike (unit D)
D) Fault (feature F)
E) Old river channels (feature R)

Environmental & Atmospheric Sciences

Although plate boundaries influence the distribution of some metals resources, petroleum geologists cannot effectively

use tectonics to explain petroleum concentrations. a. True b. False

Environmental & Atmospheric Sciences

Inclusions, or fragments, in a body of rock must be composed of material that is younger than the

rock itself. Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

A playa lake usually contains laminated mudstone and evaporite deposits, including rock salt. Indicate whether the statement is true or false

Environmental & Atmospheric Sciences