- A plant requires sunlight for photosynthesis
- A leaf performs photosynthesis
- Hence, a leaf requires sunlight to perform photosynthesis

- Absorbing something is a kind of method for obtaining something
- If something is required to perform a process then that something must be obtained to perform that process
- Therefore, if something is required to perform a process then that something can be absorbed to perform that process

- If something is required to perform a process then that something can be absorbed to perform that process
- Photosynthesis is a kind of process
- So, if something is required to perform photosynthesis then that something can be absorbed to perform photosynthesis

- A leaf requires sunlight to perform photosynthesis
- If something is required to perform photosynthesis then that something can be absorbed to perform photosynthesis
- So, a leaf absorbs sunlight to perform photosynthesis

- A leaf absorbs sunlight to perform photosynthesis
- Photosynthesis makes food for the plant by converting carbon dioxide, water, and sunlight into carbohydrates
- So, a leaf absorbs sunlight to make food

So, a leaf absorbs sunlight to make food
Question: When sunlight shines on a plant, its leaves
Context: - A plant requires sunlight for photosynthesis 
- Absorbing something is a kind of method for obtaining something 
- Photosynthesis is a kind of process 
- Photosynthesis makes food for the plant by converting carbon dioxide, water, and sunlight into carbohydrates 
- A leaf performs photosynthesis 
- If something is required to perform a process then that something must be obtained to perform that process