- Photosynthesis makes energy for the plant by converting carbon dioxide, water, and sunlight into carbohydrates
- Carbohydrates are used for storing energy
- Therefore, photosynthesis stores energy

- Living things require respiration to use energy
- If something is required to use something else then that something is a source of that something else
- Therefore, respiration is a source of energy for living things

- Respiration is a source of energy for living things
- If something releases something else then that something is the source of that something else
- So, respiration releases energy

- Photosynthesis stores energy
- Respiration releases energy
- Therefore, photosynthesis stores energy and respiration releases energy

Therefore, photosynthesis stores energy and respiration releases energy
Question
Which statement about photosynthesis and respiration is true?

Context
- Photosynthesis makes energy for the plant by converting carbon dioxide, water, and sunlight into carbohydrates 
- Living things require respiration to use energy 
- If something releases something else then that something is the source of that something else 
- If something is required to use something else then that something is a source of that something else 
- Carbohydrates are used for storing energy