Suppose an oceanographer monitors the daily salinity of a particular ocean in relation to the temperature of the water. The oceanographer plots the data with temperature, in degrees Celsius (°C), along the horizontal axis and salinity, in parts per thousand (ppt), along the vertical axis. 40- .. 30- 20- 10 12 15 18 21 24 Oceanic temperature ("C) Select the true statement about the data point identified by the arrow. When salinity reaches 36 ppt, this causes the ocean temperature to be approximately 12 °C. There is no relationship between the temperature of the ocean on a given day and salinity. The observed salinity is 36 ppt when the ocean temperature for the day is 12 °C. An ocean temperature of 36 °C corresponds to a salinity level of 12 ppt. Salinity (ppt)

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