Which consequence results when thermocline depth increases during upwelling?

💡 Explanation

Reduced thermocline disruption limits nutrient replacement because density stratification inhibits convective overturn; this 'nutrient-pump' upwelling efficiency declines; therefore less nutrient transfer; rather than the plankton benefitting or the salinity decreasing in this thermal/depth increase situation.

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• Which outcome occurs when the viscosity of rhyolitic lava decreases within a stratovolcano during a fissure eruption under increasing hydrothermal pressure?
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• Which outcome results when intense land deflation exposes saline groundwater in arid climates?