Question
Factors affecting salinity of sea water.
| Latitudes | Temperature / Rate of evaporation | Supply of fresh water | Salinity |
| Tropical Zone 5°N – 5°Sof equator | High | Abundant from (River Congo / Amazon) | High |
| Midlatitudes (25° – 35° N and S) | High (hot desert are found here) | low | High |
| Temperate regions | Temperature is lower due to slanting sunrays | The supply of water is more due to melting snow | low |
| Polar regions | Very low | low | low |
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