Which of the following statements is not true of cohesion?

A) It is greater when particles are smaller.
B) It is the attraction of particles to each other at the atomic level.
C) It works with resistance to create the resisting strength of a rock formation.
D) It is possible along contact points only.


Answer: A

Environmental & Atmospheric Sciences

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Determine the discharge associated with a gage height of


In general, there is a direct relationship between discharge and width, depth (gage height), and velocity. A stream’s rating curve relates stream discharge to the gage height. Figure 22.1 shows the gage height plotted against discharge. Note that the discharge axis is logarithmic.



6 meters: _____________
9 meters: _____________
12 meters: _____________
15 meters: _____________

Environmental & Atmospheric Sciences

Using the data in this table, calculate the number of half-lives that have passed for the granite (unit G on this table)?

A. 1 B. 2 C. 3 D. 4 E. 5

Environmental & Atmospheric Sciences

How many transcription factors are required for the initiation of transcription?

A) 1 B) 2 C) 4 D) 6

Environmental & Atmospheric Sciences

In mesa-and-scarp topography, less resistant rock erodes more quickly than caprock. Which type of rock is noted as a less resistant rock in such areas?

A) granite B) limestone C) sandstone D) shale E) basalt

Environmental & Atmospheric Sciences