The biosphere ranges from the atmosphere to _______ deepest ocean ...

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The biosphere ranges from the atmosphere to _______ deepest ocean floor: the zones of air, soil, and water that are capable of supporting life.

A. the

B. a

C. an

D. some

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Complete these short sentences with an appropriate articles. It appeared in … New York Times.

A. a

B. an

C. the

D. –