To correctly determine where salinity in the ocean increases based on the description provided, we need to consider the processes of evaporation and runoff.
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Evaporation: When water evaporates, it leaves behind salts and other dissolved substances. This increases the salinity of the remaining water.
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Runoff: Typically, runoff can dilute oceanic salinity as freshwater from rain and rivers flows into the ocean.
Given the information in the image and the nature of these processes:
- The area where salinity would increase would primarily be related to the process of evaporation.
The correct answer, given this context, would likely be 1 (indicating the area where evaporation occurs).
If the numbered locations (1, 2, 3) are specifically labeled in the diagram described, you would select the one corresponding to the evaporation area. If none of the choices accurately depict evaporation, then the answer may be "none of these." However, based on the information given, the answer is most likely 1.