Animals with bioluminescent organs on their lower surface used for camouflage ar

Question

Animals with bioluminescent organs on their lower surface used for camouflage are most likely to be found living in the ______________ community a. Hydrothermal vents b. Benthic estuarine c. Benthic abyssal d. Deep scattering layer The metal deposits in the Gulf of Califomia and the Red Sea are the result of a. Converging tectonic plates at subduction zones b. Sedimentary deposition of metal sulfides from land run-off c. Minerals dissolved from diverging crust by hydrothermal water d. Cycles of evaporation and deposition associated with ice ages The International Law of the Sea Convention established the size of the exclusive economic zones at ____________ miles. a.3 b.12 c.200 d.360 Second to oil and gas, the most profitable marine mineral resource is a. Phosphorite b. Iron and other ferrous metals c. Coal d. Sand and gravel An abundant metal dissolved in seawater and extracted by chemical and electrical means is a. Phosphorus b. Manganese c. Magnesium d. Iron

Explanation / Answer

67)D) DEEP SCATTERING LAYER

68) C- Hydrothermal process

69) C-200 miles

70) D) SAND AND GRAVEL

71)B) MANGANESE

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