Define environmental harmful substances​

An environmental hazard is a substance, state or event which has the potential to threaten the surrounding natural environment or adversely affect people's health, including pollution and natural disasters such as storms and earthquakes.

platics, polythin ,fertilizers ,

Explanation:

plastics and polthines are harmful substances for the environmental because they cannot be remove from the earth and they are very hard and cannot be destroyed and make a harmful effect for the health

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answer; formal diagnosis (vera wand formal dress);