Acid rain, if I understand the question correctly.
The answer is d. semi permeable nature of the membrane
Answer:
As of plants, bioluminescent algae fix carbon dioxide in the presence of sunlight and release oxygen. Further, during this process, they produce light as a part of photosynthesis products. Therefore, the use of bioluminescent algae can reduce anthropogenic carbon dioxide from the environment.
Bioluminescent algae-based lamps are being prepared by scientists to overcome these environmental concerns. Furthermore, these lamps would be used as street lights and reduce energy demands as well (burning of fossil fuels).
