The students decided that they would investigate some of the abiotic factors. list three water-quality tests that could be conducted and explain what information each test provides. include in your answers a description of the impact of each factor on the distribution of aquatic organisms

One test might be the acid content of the water. Water that does not have a neutral pH might be less conducive to life. Another water quality test might be oxygen levels in the water. Inadequate oxygen levels may also reduce the amount of aquatic life. The presence of pollutants might be a third test. Chemicals that poison the water would negatively impact the number and variety of organisms present.