A spatial variable (example of spatial data) that is measurable everywhere in an area of interest is called a(n):
a. ongoing variable.
b. continuous variable.
c. contiguous variable
d. none of these.
B
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A transform fault is ________.
a.) a dip-slip fault connecting an anticline with a syncline b.) the rift bounding faults on a mid-ocean ridge c.) a strike-slip fault that forms the boundary between tectonic plates d.) a reverse fault that steepens into a thrust fault
Why isn't the Precambrian more finely divided into subdivisions like periods and epochs?
A) Fewer and less diverse fossils exist in Precambrian rocks.
B) Precambrian rocks don't have radioactive isotopes in them.
C) Geologists just don't care about the Precambrian the way they do about more recent time periods.
D) The Precambrian lacks the igneous rocks that are most useful for radiometric dating.
In all ecosystems energy is eventually lost to the environment via ________
A) trophic levels B) photosynthesis C) heat resulting from respiration D) matter E) radiation and reflection of light
How much waste sent to a landfill does the EPA estimate to be reuseable?
A) 6-8% B) 7-10% C) 10-12% D) 14-16% E) 2-5%