decrease in biodiversity caused by decreased pH of seawater is the correct option. thus, option A is correct.
The plants, animals, and other species that exist in salt water found in the sea, ocean, or brackish water found in coastal estuaries are referred to as marine life, sea life, or ocean life. Marine life has a fundamental impact on the planet's nature.
More carbon dioxide is evaporating into the ocean as a result of human-driven increases in atmospheric carbon dioxide concentrations. Currently, the ocean has an average pH of 8.1, which is basic (or alkaline), but when more CO2 is absorbed, the pH drops and the ocean turns more acidic which results in a decrease in biodiversity.
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