Multiple choice

Which of the following processes converts atmospheric carbon into glucose molecules?

  1. Transpiration

  2. Fossilization

  3. Decomposition

  4. Photosynthesis
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Photosynthesis is the process where plants, algae, and some bacteria use sunlight to convert atmospheric carbon dioxide (inorganic carbon) into glucose (organic carbon). This occurs through the Calvin cycle where CO2 is 'fixed' into carbohydrate molecules. Transpiration is water loss, fossilization forms fossils, and decomposition breaks down organic matter.

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