Which process drives the sinking of surface water in high latitude regions initiating deep ocean circulation?

💡 Explanation

When seawater freezes to form ice, salt is rejected, increasing the salinity of the remaining water; this increased salinity, coupled with cooling, increases density causing the water to sink starting thermohaline circulation. Therefore, increased salinity results, rather than changes due to solar radiation, decomposition or sediment requiring alternate processes.

• Which outcome enhances stream meandering on shallow gradients?
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