It is commonly assumed that the isotopic abundances of a particular element are independent of the source of the element. If isotopic abundance does vary with location what is the consequence of that observation?
A) Nothing, the observation is totally unimportant.
B) The atomic weight determined for the element will depend on the source from which the element was obtained.
C) The chemical behavior of the element will depend on the source from which the element was obtained.
D) The atomic weight and the chemical behavior of the element will depend on the source from which the element was obtained.
B
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Global positioning systems (GPS) can "know" their location by
A) measuring the time required for radio signals from four or more satellites to reach the receiver. B) relating changes in detected radiation to changes in the position of the Sun. C) continually measuring changes in angle to a stationary reference point, such as a streetlight, in the area of the receiver. D) relating slight changes in magnetism and gravity to changes in the distance and direction of movement from the point at which the location of the receiver was last calibrated.
Ultimately, all biofuels are ________, because they are the result of ________
A) synthetic; chemical manipulation of hydrocarbons B) solar; photosynthesis C) polymers; biological metabolic processes D) geological; sedimentation E) inefficient; decomposition by microorganisms
How many glaciers and moraine fields are there north of the red line that indicates the Wilderness Boundary that runs from the west edge of the map to Mt. Goethe and Muriel Peak? Count features along the length of the boundary across the bottom of Sections 31 (not labeled), 32, and 33. How many are there to the immediate south of that same Wilderness Boundary line?
South of Goethe Lake find Mount Goethe on Figure 25.3 (topographic map) and Figure 25.4 (NAIP photo). What will be an ideal response?
_____________________ is the name of the island shared by the Dominican Republic and Haiti
Fill in the blank(s) with the appropriate word(s).