Question

1. ______ this term can be used to describe a large circulating ocean current: a. el niño b. estuary c. gyre d. inversion

Explanation:

• Option A: El Niño is a climate pattern related to ocean - atmosphere interactions, not a general term for a large circulating ocean current.
• Option B: An estuary is a coastal area where a river meets the ocean, not a large circulating ocean current.
• Option C: A gyre is a large - scale system of rotating ocean currents, which matches the description of a large circulating ocean current.
• Option D: Inversion usually refers to a meteorological phenomenon (temperature inversion) or in other contexts, not related to ocean currents.

Answer:

C. Gyre