Question

Since aquarium plants remain completely submerged in water, from where do they get C02 for photosynthesis?

Answer 1

Answer:

Since it's harder to diffuse carbon dioxide in water, some aquatic plants float on the water's surface or have a few leaves sticking out of the water. These leaves have stomata and collect carbon dioxide, like terrestrial plants. Other aquatic plants are completely submerged.

Answer 2

As fish exhale CO2 while breathing , the plant get CO2 from them. When the sun rises its diverges light and a little light is absorbed by the plant. Thats how plants perform photosynthesis.

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