Thursday Morning Riddle

I’m a process that generates food from a light.
I am useful for plants who would reach a great height.
That is all I can mean, which brings with it a plight.
And so that’s why this riddle was tricky to write.

Who am I?

UPDATE: Riddle solved by Asher. See comments for answer.

4 Responses to “Thursday Morning Riddle”

  1. Asher Says:

    Photosynthesis?

  2. Bill Says:

    PHOTOSYNTHESIS is correct. Way to go, Asher!

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  4. Janina Says:

    When I originally commented I appear to have clicked on the -Notify me
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