A scientist was measuring the effect of water temperature on dissolved oxygen in a local lake during the spring. The lake was experiencing increased algal growth due to runoff from a nearby cornfield. The scientist plotted his data in the graph below. mc026-1.jpg The scientist concluded that the decrease in oxygen levels was caused by the increase in temperature. Which additional explanation is most likely correct? The decrease in oxygen levels was caused by a faulty oxygen meter. The decrease in oxygen levels was mostly caused by air temperatures. The decrease in oxygen levels was also caused by the increased algal growth. The decrease in oxygen levels was caused by oxygen in the runoff.
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A scientist was measuring the effect of water temperature on dissolved oxygen in a local lake during the spring. The lake was experiencing increased algal growth due to runoff from a nearby cornfield. The scientist plotted his data in the graph below.
The scientist concluded that the decrease in oxygen levels was caused by the increase in temperature. The additional information that is correct is C. The decrease in oxygen levels was also caused by the increased algal growth.
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