student asking question

If she's referring to a place "online", shouldn't it be "in online" or "on online", not just "online"?

teacher

Native speaker’s answer

Rebecca

Since "online" is a place, it does not need "in" or "on" in front of it. Although "online" is correct, this sentence is awkward. This sentence would be more clear if she said "I feel like recently there's been a very noticeable change towards people being a lot more eco-friendly, which has been expressed online."

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