Ch-11 Wastewater Story

Question 1

____________ is one of the basic necessities of life.

Answer 1

Clean Water

Question 2

Women and girls walk for ___________________ to collect clean water

Answer 2

Several Kilometers

Question 3

World Water Day was declared on which day ?

Answer 3

22^nd March 2005

Question 4

Who declared World Water Day?

Answer 4

General Assembly of United Nations

Question 5

_____________________ proclaimed the period _________________ as the International Decade for action on water for life

Answer 5

General Assembly of United Nations, 2005-2015

Question 6

The water that is rich in oil and is mixed with oil or black-brown in color that goes down the drains from sinks, toilets, showers etc. is called

Answer 6

Wastewater

Question 7

What is waste from our home called

Answer 7

Domestic Waste

Question 8

Name some harmful microbial diseases present in Domestic Waste.

Answer 8

Jaundice, Cholera and Typhoid

Question 9

Wastewater generated in industries, factories, offices etc. is called-

Answer 9

Industrial Waste

Question 10

Industrial Waste contains-

Answer 10

Poisonous Chemicals and Metals

Question 11

What is wastewater from hospitals called ?

Answer 11

Hospital Waste

Question 12

What does hospital waste contain

Answer 12

Disease-Causing Germs and Radioactive Chemicals

Question 13

Is rainwater wastewater ?????????

Answer 13

YES

Question 14

What does agricultural waste contain ?

Answer 14

Nitrates, Phosphates, Dangerous Chemicals

Question 15

All Wastewater forms-

Answer 15

Sewage

Question 16

Clean Water that is fit for drinking is called-

Answer 16

Potable Water

Question 17

Sewage is a ______________.

Answer 17

Liquid Waste

Question 18

Most of sewage is ____________.

Answer 18

Water

Question 19

What are the impurities present in sewage called as ?

Answer 19

Contaminents

Question 19

What does the water in sewage contain ?

Answer 19

Dissolved and Suspended impurities

Question 19

Organic Impuritis present in sewage are :-

( PS: There are 8 of those )

Answer 19

Human Faeces, Animal Waste, Oil, Urea ( Urine ), Pesticides, Hericides, Fruit and Vegetable Waste, etc.

Question 20

Inorganic Impurities present in sewage

There are 3 of them

Answer 20

Nitrates, Phosphates, and Metals

Question 21

Nutrients present in sewage :-

There are 2 of them

( PS: Bro, Even I think it’s absurd )

Answer 21

Phosphurus and Nitrogen

Question 22

Bacteria present in Sewage

There are 2 of them

Answer 22

Vibrio Cholera and Salmonella Typhi

Question 23

What are the other microbes present in sewage :- ## Footnote Only 1

Answer 23

Entamoeba Histolytica

Question 23

What do the bacteria present in sewage cause :-

Answer 23

Cholera and Typhoid respectively

Question 24

What does Entamoeba Histolytica Cause ?

Answer 24

Dysentry

Question 24

Sewarage goes through a system of pipes called

Answer 24

Sewers

Question 25

Sewers linked to each other form a network called :-

Answer 25

Sewerage System

Question 26

Sewage flows from houses through pipes of ## Footnote It's the materials

Answer 26

Cast Iron or PVC pipes

Question 27

Full Form of PVC is

Answer 27

Polyvinyl Chloride

Question 27

Diameter of sewage pipes

Answer 27

8 to 10 cm

Question 28

Manholes are covered with what - | Its about the lid

Answer 28

Heavy cemented or metallic lids

Question 28

Openings on the roads surface are called- ## Footnote Bruh, its those stuff on the road

Answer 28

Manholes

Question 29

Manhole are located every

Answer 29

**50-60 metres**, at **junction of two pipes** or where the **direction of the pipe is changed.**

Question 30

The contamination of fresh water is called :-

Answer 30

Wtaer Pollution

Question 31

The subtance that cause water pollution are called as

Answer 31

Water Pollutants

Question 32

Three categories of water pollutants

Answer 32

Physical, Chemical, and Biologcal pollutants

Question 33

Physical Pollutants include

Answer 33

Heat and Oil spills

Question 34

Common Inorganic Impurities in water are compunds of

Answer 34

Calcium and Magnesium

Question 35

Biological pollutants include

Answer 35

pathogens

Question 35

The process of removing pollutants and destroying the disease causing from wastewater before it enters a water body, is known as :-

Answer 35

Sewage Treatement

Question 36

Water that emerges from the sedimentation tank is called

Answer 36

Clarified Water

Question 37

The collected sludge is transferred to different tanks called as :-

Answer 37

Digesters

Question 37

___________ released in digesters

Answer 37

Biogas ( can be used as fuel )