The sun's rays are primarily responsible for skin damage.

To me this sounds like it means that the primary activity of the sun's rays is damaging skin. However the intention is obviously that the primary cause of skin damage is the sun's rays.

Is this sentence actually wrong, or just ambiguous?

  • By the way, feel free to correct my grammar, punctuation etc. if needed. – Jake Jan 18 '11 at 8:59

I would say it was ambiguous; I originally read it as you intended, but it could be read the other way as well.

Simply put it like you already have in your question:

The primary cause of skin damage is UV radiation from the Sun.

  • 3
    It is formally ambiguous, but I doubt that it is pragmatically so. – Colin Fine Jan 18 '11 at 17:24

I would say it is ambiguous and also incorrect from a logical point of view. Here are a couple of ways to rephrase the sentence without changing too many of the words:

The sun's rays are the the primary cause of skin damage.

Or using the passive,

Skin damage is primarily caused by the sun's rays.

Hope that helps you.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.