It sounds like you're referencing a specific puzzle or trivia question related to photosynthesis and its connection to sunlight. In general, it's known that plants, algae, and some bacteria use photosynthesis to convert sunlight into energy, with an estimated 1-2 billion tons of carbon being fixed through this process each year.
If you're looking for a more specific answer or if there's a specific number or fact you need, please provide additional context or clarify the puzzle, and I'll be happy to help!