What is sewage ? How is sewage disposed of ?

What is sewage used for?

What is sewage ? From what sewage water is passed before disposing?

What comprises sewage?

What is sewage ? In which way can sewage be harmful to us?

What is sewage ? In which way can sewage be harmful to us ?

What is sewage ? In which way can sewage be harmful to us?

Paragraph based questions. Read the paragraph and answer the following questions: Where is sewage in cities disposed off?

What is treatment of sewages purpose?