Answer
Humans can affect the hydrosphere by polluting water sources with chemicals, sewage, and other pollutants. This can lead to water contamination, which can have a negative impact on human health, the environment, and the economy. For example, polluted water sources can lead to the spread of waterborne diseases, which can cause illness and even death in humans. Additionally, polluted water sources can damage ecosystems, leading to a decrease in biodiversity and a decrease in the availability of natural resources.