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Photosynthesis and Respiration — BIOLOGY STD 7 — Question

ICSE BoardEnglish MediumSTD 7BIOLOGYPhotosynthesis and Respiration1 Mark
Question
Answer the following in short.
What is the function of pleural fluid?
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Answer

The pleural fluid keeps the surface of the lungs moist for easy diffusion of gases (oxygen and carbon dioxide).

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