The "channeled scablands" of the state of Washington were caused by ________.
A. the failure of an ice dam during glacial melting
B. a large rainstorm
C. the avulsion of a major river channel
D. winds from an ancient volcanic explosion at Mt. St. Helens
E. the gentle, slow melting of glaciers
Answer: A
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____ is the study of the composition, origin, areal distribution, and age relationships of layered rocks
A)Stratigraphy B)Uniformitarianism C)Lithography D)Chronography E)Biostratification
Most energy entering the earth's atmosphere is between ________ and ________ microns while most of the thermal infrared energy emitted from theearth is between ________ and ________ microns
A. 0.1 and 0.4; 8 and 13 B. 20 and 40; 40 and 60 C. 8 and 13; 20 and 40 D. 0.4 and 0.7; 8 and 20
Which of the following radioisotopes is used in PET scans?
A) C-14 B) F-18 C) H-3 D) P-32
The daily mean temperature is determined by ________
A) summing the temperature measured every hour and dividing by 24 B) summing the maximum and minimum temperatures daily and dividing by 2 C) summing the digital samples of temperature in several places at different times of day and averaging those samples D) measuring the temperature at noon E) none of the above