Deutsch: Agent / Español: Agente / Português: Agente / Français: Agent / Italiano: Agente /

An Agent is any physical, chemical, or biological entity that can be harmful to an Organism (synonymous with stressors.)

In the context of the environment, an "agent" can refer to a substance or entity that has the ability to cause change or have an effect on something else. This could include natural agents, such as water, wind, and fire, as well as human-made agents, such as pesticides, chemicals, and machines.

Here are a few examples of how "agent" might be used in the context of the environment:

• Water is an important natural agent in the environment, as it has the ability to shape and change the landscape through processes such as erosion and sedimentation.

• Wind is another natural agent that can have a significant impact on the environment. It can shape the landscape through processes such as sand dune formation, and it can also affect the distribution and behavior of plants and animals.

• Pesticides are human-made agents that are used to control pests, such as insects and weeds. However, pesticides can also have negative impacts on the environment, such as by contaminating water sources or affecting non-target species.