Final answer:
The Ohio Department of Health took water samples at 24 beaches on Lake Erie in Erie County in early September 2016 to assess pollution levels.
Step-by-step explanation:
The Ohio Department of Health took water samples at 24 beaches on Lake Erie in Erie County in early September 2016 to assess pollution levels.
To investigate water quality, they performed various tests, including:
- Examining each water sample for clarity and the presence of particles
- Observing each water sample under a microscope
- Testing the pH of each water sample
- Pouring some of the water from each sample through filter paper
These tests would provide information about the purity of the water and help determine pollution levels.