Which of these practices causes salinization of farmland?

A. irrigation
B. deep plowing
C. pesticides
D. synthetic fertilizers


Answer: A

Environmental & Atmospheric Sciences

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The study of natural events such as tornadoes, forest fires or landslides are explored within the ________ branch of geography

A) physical B) human C) regional D) spatial E) natural

Environmental & Atmospheric Sciences

In the Northern Hemisphere, ocean currents in the Atlantic and the Pacific move in a generally circular pattern. The direction of this motion is ____ in the Atlantic and ____ in the Pacific

A) clockwise; counterclockwise B) counterclockwise; counterclockwise C) clockwise; clockwise D) counterclockwise; clockwise

Environmental & Atmospheric Sciences

What is the approximate depth of the caldera (from the rim down to the floor)?

The question is based on Map T-2, the “Umnak, Alaska,” topographic map (scale 1:250,000; contour interval 200 feet), Map T-21b, a satellite image; and Figures 35-3 and 35-4, a shaded relief map and a stereogram showing the Okmok Caldera (53°25'33"N, 168°07'38"W) on Umnak Island in the Aleutian Islands. What will be an ideal response?

Environmental & Atmospheric Sciences

The special geologic terms used to represent the direction of a horizontal line on an inclined surface (like in a fault) is

A) dip. B) joint. C) hanging. D) horst.

Environmental & Atmospheric Sciences