Anonymous Is "including nitrogen and oxygen in air" a non-defining clause? It's non-defining, but it's debatable whether it's a clause. "including" is often taken to be a preposition, so I'd say it's a non-defining prepositional phrase rather than a clause.
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AnonymousIs "including nitrogen and oxygen in air" a non-defining clause?It's non-defining, but it's debatable whether it's a clause. "including" is often taken to be a preposition, so I'd say it's a non-defining prepositional phrase rather than a clause.