The lake is the ecosytem that is nearest to me. FIsh, plants and reptiles are biotic factors that should be in there so if it was like a real lake it would. So the sky and grass and sunlight will be aibiotic variables.
Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
