Mark the free floating hydrophyte:
Correct answer: D. Spirodela
- A. Sagittaria
- B. Typha
- C. Najas
- D. Spirodela
Explanation
Spirodela is a duckweed that floats freely on the water surface without being rooted in the bottom. Sagittaria and Typha are rooted emergent plants, while Najas is generally submerged.
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