The technical name for decayed organic material in soil is:

a. caliche
b. laterite
c. parent material
d. humus


d

Environmental & Atmospheric Sciences

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What is loess?

A. sediment formed into sand dunes B. wind-deposited, fine-grained silt C. sediment transported in sand dunes D. wind-abraded rock fragments E. sediment eroded through deflation

Environmental & Atmospheric Sciences

Population projections are predictions of the future, assuming that current trends remain the same

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

The continental glaciers that existed during the Ice Age accumulated at the North Pole and spread southward in all directions

Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

At temperate latitudes, a stable water column with a pycnocline near the surface will ________ primary production in the spring and ________ primary production in late summer.

A. decrease; decrease B. increase; decrease C. decrease; increase D. increase; increase E. None of these is correct; both will be moderately productive.

Environmental & Atmospheric Sciences