Ancient current directions can be determined by:
a. wave-formed ripple marks.
b. cross-bedding.
c. graded bedding.
d. mud cracks.
e. all of the above
B
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A mental map
A) requires that a person be in a particular location to draw the map. B) is a map created using a GIS. C) is a personal representation of a location. D) is limited by citizen science. E) is the same thing as participatory GIS.
As of 2012, which was the only ocean basin to have significant tsunami warning buoy coverage?
A) Pacific Ocean B) Atlantic Ocean C) Indian Ocean D) Arctic Ocean
A water wave reaches an unstable breaking point when the steepness ratio, H/L, reaches ________.
A. 1:7 B. 1:8 C. 1:2 D. 1:10 E. 1:5
The type of remote sensing that penetrates clouds at night for accurate terrain representation is ________
A) radar B) sonar C) passive microwave D) thermal infrared E) Landsat