During photosynthesis plants take in ______ and release ______ .
1. Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide and form oxygen and energy in the form of sugar.
2. During the process of photosynthesis carbon dioxide and water is taken in from air and soil respectively and oxygen is released into the atmosphere.
3. Starch is stored as energy.
Final answer: During photosynthesis plants take in carbon dioxide and release oxygen.