From where is element hydrogen obtained by the plants?

Explanation

**Step-by-Step Solution:**

1. **Understanding Plant Water Absorption:**
- Plants primarily absorb water through their roots from the soil. This water is essential for various physiological processes.

2. **Role of Water in Photosynthesis:**
- During photosynthesis, specifically in the light-dependent reactions, water molecules (H₂O) are split. This process is known as photolysis.

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