Which of the four numbered features on this figure is the oldest?
A) 1
B) 2
C) 3
D) 4
A) 1
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The law of ________ explains that sediments (such as sand, gravel, and mud) are originally deposited or settled out of water in horizontal layers.
A. original horizontality B. superposition C. cosines D. original continuity E. gradation
The pump-and-treat method is
A. ineffective in cleansing contaminated water well enough to be used as a drinking water supply. B. the surface treatment of polluted groundwater that has been removed from an aquifer. C. the process by which municipal sewage is treated before discharge into a river. D. a fast, effective and inexpensive means of treating contaminated groundwater.
Scientific opinions are always factual.
Answer the following statement true (T) or false (F)
Polychaetes are the most successful worm phyla, being found in terrestrial, aquatic, and marine
environments. Indicate whether the statement is true or false.