Earth Science Quiz
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Researchers use the light-dark bottle method to measure primary productivity. A water sample's initial oxygen concentration is measured. One bottle is incubated in the light (light bottle), and another is wrapped in foil and incubated in darkness (dark bottle). The decrease in oxygen in the dark bottle represents community respiration (R), while the net change in oxygen in the light bottle represents net community production (NCP). How is Gross Primary Production (GPP) calculated from these measurements?
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