A factory is built next to a river that feeds directly into a lake. The factory takes water from the river and uses it in the manufacturing process. While the factory is careful not to introduce any chemicals into the water before returning it to the river, the water temperature increases by 10C when the factory returns it to the river. Describe three likely effects on the organisms in the surrounding habitats.

Question

A factory is built next to a river that feeds directly into a lake. The factory takes water from the river and uses it in the manufacturing process. While the factory is careful not to introduce any chemicals into the water before returning it to the river, the water temperature increases by 10C when the factory returns it to the river. Describe three likely effects on the organisms in the surrounding habitats.

Answer 1

1. Decrease in oxygen levels: Warmer water can hold less dissolved oxygen, which can lead to a decrease in oxygen levels in the river. This can have a negative impact on aquatic organisms such as fish, insects, and plants that rely on oxygen for survival.

2. Disruption of habitat: The increase in water temperature can disrupt the natural habitat and feeding patterns of organisms in the river. Some species may be unable to adapt to the warmer temperatures, leading to changes in the biodiversity of the ecosystem.

3. Increase in invasive species: Higher water temperatures can create favorable conditions for certain invasive species to thrive. These invasive species can outcompete native species for resources, leading to a further disruption of the ecosystem and potential decline in overall biodiversity.