Which of the following statements about the effects of pollution on marine ecosystems is true? a. Burning fossil fuels causes a direct increase in the temperatures of ocean water. B. Burning fossil fuels causes a decrease in the pH of ocean water making it more acidic. C. Pollution in marine ecosystems causes a decrease in the formation of algal blooms. D. Addition of warm water has no effect on marine ecosystems. Please select the best answer from the choices provided A B C D.