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प्रश्न
What is the relationship between Gross Primary Productivity (GPP) and Net Primary Productivity (NPP)?
पर्याय
GPP equals NPP because there are no respiratory losses
NPP is always greater than GPP in natural ecosystems
GPP is derived from NPP by adding consumer respiration
NPP = GPP − Respiratory loss by plants (R)
MCQ
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उत्तर
The formula NPP = GPP − R clearly establishes that Net Primary Productivity is obtained by subtracting the respiratory losses (R) of producers from their Gross Primary Productivity. This relationship shows that GPP always exceeds NPP because plants consume a portion of their photosynthetic output through respiration.
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