Philippa said:Hi Edher!
This sounds like pondweed photosynthesising to me.....
The further away from the light source, the less oxygen was produced.
Edher said:That's exactly right. That's what the experiment was about.
However, if I'm trying to be specific, meaning, exactly at that time, is it correct to say "The further away from the light source, the less oxygen it was produced." Right at that instant.