What is the primary water source in North America?

A. Rivers
B. Oceans
C. Aquifers
D. Groundwater


D

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DOT placards are ___-shaped

A. oval B. square C. diamond D. rectangular

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The combustion process can be maintained at oxygen concentrations as low as __________

Fill in the blank(s) with correct word

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The term attenuated means:

A. killed B. vaccinated C. processed D. live

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Pancreatic steatorrhea __________

Fill in the blank(s) with the appropriate word(s).

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