Which outcome results on coral reefs when El Niño events induce thermal stress?

💡 Explanation

Coral bleaching happens because thermal stress during El Niño inhibits zooxanthellae photosynthesis via photoinhibition, therefore expulsion occurs, rather than enhanced deposition because that relies on stable temperatures.

• Which outcome occurs when glaciers retreat in semi-arid regions?
• Which risk increases when an alluvial river channel is artificially straightened along its floodplain?
• Which outcome occurs when accumulated sediment compacts during subduction?
• Which mechanism primarily sculpts ventifacts in hyperarid deserts?
• Which consequence results when rapid groundwater withdrawal accelerates?
• Which risk increases when extensive loess deposits accumulate?