This figure shows the geologic timescale. Which period listed below would be part of the Paleozoic?
A. Paleogene
B. Cambrian
C. Neogene
D. Triassic
E. Jurassic
Answer: B
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Precipitation in Sub Saharan Africa
A) is heaviest in winter months.
B) is consistent year round.
C) primarily occurs in the summer months.
D) is greatest in the southern portion of the region.
E) varies significantly.
Is it likely that the surface stream water in Sample Site 1 will be contaminated by groundwater from either the waste pit or the pasture? Why or why not?
The question is based on Figure 25-3, a map of a hypothetical landscape with an effluent stream flowing from northeast to southwest. Water table contours are drawn at 2-foot intervals and flow lines show the direction of groundwater movement at the top of the zone of saturation. The waste pit in the north was dug down to a depth just slightly above the water table in that location. A fenced pasture for grazing livestock is in the east. Two wells are shown, and the locations of three water quality sampling sites along the stream are indicated. What will be an ideal response?
A(n) ____ exists where markedly mismatching strata meet along an irregular eroded surface
a. unconformity b. bedding plane c. hot spot d. uniformity
What did the phenomenon of polar wandering help explain?
A. Global mass extinctions B. Movement of the continents C. Movement of polar glaciers D. Development of the Ice Age