Homonym: Noxious (Harmful)
The term "noxious" refers to substances or elements that are harmful, poisonous, or very unpleasant. It is often used to describe chemicals, plants, or gases that can cause injury or adverse health effects to living organisms. For example, certain weeds can be considered noxious because they can damage crops and ecosystems.
In environmental contexts, noxious materials can contaminate air, water, and soil, leading to serious ecological issues. Noxious weeds can outcompete native plants, disrupting local habitats. Understanding and managing noxious substances is crucial for protecting both human health and the environment.