Negative effects refer to the harmful consequences that can arise from certain actions, behaviors, or situations. For example, excessive use of social media can lead to feelings of anxiety and depression, as individuals may compare themselves unfavorably to others. This can impact mental health and overall well-being. Additionally, environmental issues like pollution can have severe negative effects on both human health and ecosystems. Exposure to pollutants can cause respiratory problems and other health issues, while also harming wildlife and disrupting natural habitats. Addressing these negative effects is crucial for promoting a healthier society and environment.