Problem - There has been a sharp decline in fish catch from Maharlika Bay since June 2001, two months after the metal manufacturing plant started its operation near the bay area., Question - What could have caused the decline in the fish population in Maharlika Bay?, Hypothesis - The metal manufacturing plant might be causing a decline in the fish population. If the metal manufacturing plant dumps its waste in the water, then the aquatic life in the bay decreases, Experiment - Further investigations showed that the toxins found in the bay water were the by products of the metal manufacturing process in the nearby plant. Findings suggested that the metal manufacturing plant dumped their waste into the body of water, polluting the bay at an intolerable level of aquatic life., Analysis -  Water samples and tissues of dead fish from the bay were collected for analysis. Chemical analysis of the samples showed that identical toxins were present in the water samples and fish tissues., Conclusion - The sharp decline in fish catch from the bay since June 2001wa due to the deaths of the fish caused by water pollution that the metal company is answerable for,

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