What may be interpreted from this sketch?
A. The tan silt layer is likely the oldest layer present.
B. The basalt is younger than the fault.
C. None of these choices are correct.
Answer: C
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What is the general correlation between the concentration of CO2 and temperature in the Antarctic over the last 800,000 years, as shown in Figure 24-5?
The question is based on Figure 24-5, showing variations in CO2 and temperature anomalies in Antarctica going back 800,000 years. This temperature record shows the major glacial (cold) and interglacial (warm) periods of the later Pleistocene Epoch (2.58 million to 11,700 years ago). What will be an ideal response?
Seedless vascular plants release spores to the environment
a. True b. False
Where does most of the sediment on the Pacific coast originate from?
a. Granite rock b. Biological productivity c. Basalt Rock d. Lava
What best describes the direction that groundwater flows in the subsurface?
A. from unconfined to confined aquifers B. from saturated to unsaturated aquifers C. from areas of infiltration to areas of evaporation D. from areas of high hydraulic head to low hydraulic head E. away from streams and lakes