Stromatolites are an example of which of the following sediment types?
A) Biogenous Sediment
B) Cosmogenous Sediment
C) Hydrogenous Sediment
D) Lithogenous Sediment
E) Terrigenous Sediment
A
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Which of the following equation expresses the Darcy's law? Assume that: Q is the groundwater velocity, K is the permeability, A is the area of cross section, h is the difference in hydraulic head, and x is the travel distance of groundwater.
a. Q = K / (x A h) b. Q = K A h / x c. Q = K A x / h d. Q = A h / (K x)
Using the Periodic Table, what can you say about the element oxygen (O)? 
A. it has 6 electron shells and 2 electrons in the outer shell B. it has 6 neutrons and 2 protons C. it has 6 protons and 2 neutrons D. None of these choices are correct.
What are the two most abundant elements dissolved in seawater? What is produced when these elements combine?
What will be an ideal response?
New Zealand's exports to _____ surpass exports to the United States, Britain and Australia combined.
A. China B. Southeast Asia C. Japan D. Latin America