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NSO > Ch-11 Wastewater Story > Flashcards

Ch-11 Wastewater Story Flashcards

1
Q

____________ is one of the basic necessities of life.

A

Clean Water

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2
Q

Women and girls walk for ___________________ to collect clean water

A

Several Kilometers

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3
Q

World Water Day was declared on which day ?

A

22nd March 2005

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4
Q

Who declared World Water Day?

A

General Assembly of United Nations

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5
Q

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

A

General Assembly of United Nations, 2005-2015

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6
Q

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

A

Wastewater

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7
Q

What is waste from our home called

A

Domestic Waste

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8
Q

Name some harmful microbial diseases present in Domestic Waste.

A

Jaundice, Cholera and Typhoid

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9
Q

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

A

Industrial Waste

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10
Q

Industrial Waste contains-

A

Poisonous Chemicals and Metals

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11
Q

What is wastewater from hospitals called ?

A

Hospital Waste

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12
Q

What does hospital waste contain

A

Disease-Causing Germs and Radioactive Chemicals

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13
Q

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

A

YES

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14
Q

What does agricultural waste contain ?

A

Nitrates, Phosphates, Dangerous Chemicals

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15
Q

All Wastewater forms-

A

Sewage

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16
Q

Clean Water that is fit for drinking is called-

A

Potable Water

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17
Q

Sewage is a ______________.

A

Liquid Waste

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18
Q

Most of sewage is ____________.

A

Water

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19
Q

What are the impurities present in sewage called as ?

A

Contaminents

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19
Q

What does the water in sewage contain ?

A

Dissolved and Suspended impurities

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19
Q

Organic Impuritis present in sewage are :-

( PS: There are 8 of those )

A

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

20
Q

Inorganic Impurities present in sewage

There are 3 of them

A

Nitrates, Phosphates, and Metals

21
Q

Nutrients present in sewage :-

There are 2 of them

( PS: Bro, Even I think it’s absurd )

A

Phosphurus and Nitrogen

22
Q

Bacteria present in Sewage

There are 2 of them

A

Vibrio Cholera and Salmonella Typhi

23
Q

What are the other microbes present in sewage :-

Only 1

A

Entamoeba Histolytica

23
Q

What do the bacteria present in sewage cause :-

A

Cholera and Typhoid respectively

24
Q

What does Entamoeba Histolytica Cause ?

A

Dysentry

24
Q

Sewarage goes through a system of pipes called

A

Sewers

25
Q

Sewers linked to each other form a network called :-

A

Sewerage System

26
Q

Sewage flows from houses through pipes of

It’s the materials

A

Cast Iron or PVC pipes

27
Q

Full Form of PVC is

A

Polyvinyl Chloride

27
Q

Diameter of sewage pipes

A

8 to 10 cm

28
Q

Manholes are covered with what -

Its about the lid

A

Heavy cemented or metallic lids

28
Q

Openings on the roads surface are called-

Bruh, its those stuff on the road

A

Manholes

29
Q

Manhole are located every

A

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

30
Q

The contamination of fresh water is called :-

A

Wtaer Pollution

31
Q

The subtance that cause water pollution are called as

A

Water Pollutants

32
Q

Three categories of water pollutants

A

Physical, Chemical, and Biologcal pollutants

33
Q

Physical Pollutants include

A

Heat and Oil spills

34
Q

Common Inorganic Impurities in water are compunds of

A

Calcium and Magnesium

35
Q

Biological pollutants include

A

pathogens

35
Q

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

A

Sewage Treatement

36
Q

Water that emerges from the sedimentation tank is called

A

Clarified Water

37
Q

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

A

Digesters

37
Q

___________ released in digesters

A

Biogas ( can be used as fuel )

38
Q
A
39
Q
A
40
Q
A
41
Q
A
42
Q
A

NSO (3 decks)

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