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← Earth & Natural SystemsWhich outcome occurs when increased suspended sediment reduces light penetration in coastal waters?
A)Increased coral calcification rates occur
B)Seagrass beds experience range expansion
C)Ocean surface temperature decreases rapidly
D)Photosynthesis by zooxanthellae decreases sharply✓
💡 Explanation
Reduced light penetration limits the ability of zooxanthellae to photosynthesize because light is essential for this process. Therefore, photosynthesis decreases sharply, rather than increasing calcification or benefiting seagrass, which also rely on light. The heat absorption of the ocean water isn't dramatically affected.
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