What effect do algae blooms have on ocean ecosystems?(1 point)

Question

Responses

increased underwater plant population
increased underwater plant population

decreased carbon dioxide in the water
decreased carbon dioxide in the water

increased fish population
increased fish population

decreased oxygen in the water

Answer 1

**Decreased oxygen in the water.**

Algae blooms, particularly those caused by harmful species, can lead to a significant reduction in oxygen levels in the water when the algae die and decompose. This process, called eutrophication, consumes a lot of oxygen, leading to hypoxic (low oxygen) conditions, which can be detrimental to marine life and overall ocean ecosystem health.