What is the role of manhole?

Important Questions on Management of Wastewater

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 19 - Management of Wastewater>ASSESSMENT ZONE>Q E

What is done during second stage of Primary treatment?

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 19 - Management of Wastewater>ASSESSMENT ZONE>Q E

Why UV rays are passed through the wastewater?

HARD

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 19 - Management of Wastewater>ASSESSMENT ZONE>Q E

Explain the steps involved in wastewater treatment plant with the help of a flow chart.

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 19 - Management of Wastewater>ASSESSMENT ZONE>Q E

State a difference between sewage and sewer.

EASY

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 19 - Management of Wastewater>ASSESSMENT ZONE>Q E

Why is chlorine gas passed through treated sewage?

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 19 - Management of Wastewater>ASSESSMENT ZONE>Q F

What is wastewater? Explain its two chief sources.

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 19 - Management of Wastewater>ASSESSMENT ZONE>Q F

How mining and leakage from sewer lines affect the water?

MEDIUM

7th CBSE

IMPORTANT

Expanded Universal Science 7>Chapter 19 - Management of Wastewater>ASSESSMENT ZONE>Q F

Why do we need an effective drainage system?