The introduction of materials that have negative impacts on t he ecosystem is known as

The introduction of materials that have negative impacts on the ecosystem is known as pollution. This refers to the presence or introduction into the environment of substances or energy that cause harm or discomfort to living organisms and the ecosystem as a whole. These harmful substances can come from a variety of sources, such as industrial processes, transportation, and waste disposal, and can have a wide range of negative effects on the environment, including air and water pollution, soil contamination, and harm to wildlife and plant species.