What is sewage?

Important Questions on Wastewater Management

EASY

7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 18 - Wastewater Management>Oral Questions>Q 2

It is located at regular intervals every $50-60$ metres i.e

-

A

-

H

-

-

E

 

EASY

7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 18 - Wastewater Management>Oral Questions>Q 3

Discharge of untreated sewage into water bodies is one of the main source of _____.(guess the word).

EASY

7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 18 - Wastewater Management>Oral Questions>Q 4

Name two diseases which are caused due to water pollution.

EASY

7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 18 - Wastewater Management>Oral Questions>Q 5

Give one beneficial activity of microorganisms for sewage.

EASY

7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 18 - Wastewater Management>Oral Questions>Q 2

What is the first stage of primary treatment?

EASY

7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 18 - Wastewater Management>Oral Questions>Q 3

E

U

L

D

G

S

Unjumble the term related to sewage.

EASY

7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 18 - Wastewater Management>Oral Questions>Q 4

Why should we treat the sewage?

EASY

7th CBSE

IMPORTANT

Learning Elementary Science for Class 7>Chapter 18 - Wastewater Management>EXERCISES>Q I

Which of the following processes are used in the purification of water in a municipal water treatment system?