Respuesta :
The most common source of water contamination is sewage.
What is water contamination?
Water contamination refers to the presence in water of substances which are harmful and which make water unfit for use in the home and industries.
The sources of water contamination include:
- sewage
- pesticides
- fertilizers
The most common of these contaminants is sewage from homes and industries.
Learn more about water contamination at: https://brainly.com/question/1198118