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Chapter1 Flashcards

1
Q

yarOlogical Cycle This is the cycle in which water

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2
Q

circulates from the land to the sky and back again. It is also known as

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3
Q

the Water Cycie.

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4
Q

Small rivers have turned into toxic stream.

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5
Q

like Ganga and Yamuna are extremely polluted and many

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6
Q

CSE (Centre of Science and Environment) 1999

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big rivers

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7
Q

KNOWLEDGE PLUS According to the Citizens Fifth Report

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8
Q

Fort area.

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9
Q

constructed by Iltutmish for supplying water to Siri

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10
Q

In the 14th century

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tank in Hauz Khas

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11
Q

pesticides and fertilisers

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making it unfit for use.

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12
Q

due to domestic and industrial wastes

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chemicals

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13
Q

Water pollution also leads to water scarcity. It is polluted

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14
Q

of that time i.e. Bhopal lake was built.

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15
Q

In the llth century

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one of the largest artificial lakes

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16
Q

leads to over exploitation of water.

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17
Q

pumping devices to meet the needs of the people. This

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18
Q

Many housing colonies have their own ground water

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19
Q

Bennur (Karnataka) and Kolhapur (Maharashtra).

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20
Q

Kalinga (Odisha)

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Nagarjunakonda (Andhra Pradesh)

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21
Q

Evidences of irrigation works have also been found in

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22
Q

comes from hydroelectric power.

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23
Q

resources. Industries need power to run them which

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24
Q

post-independent India has put pressure on freshwater

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25
Q

Intensive industrialisation and urbanisation in

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26
Q

food grains

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especially in dry-season agriculture.

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27
Q

requtres huge water for irrigation for producing higher

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28
Q

Agriculture is also a cause of water scarcity as it

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29
Q

and irrigation systems were extensively built.

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30
Q

During the time of Chandragupta Maurya

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dams

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31
Q

waters of the river Ganga.

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32
Q

had water harvesting system for channelling the flood

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33
Q

In the lst century BC

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Sringaverapura near Allahabad

34
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The hydraulic

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35
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structures built in Ancient

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36
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India were as follows

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37
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by large population.

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38
Q

demand for water for domestic use and producing food

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39
Q

Another major factor for water scarcity is the increased

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40
Q

canals for irrigation.

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41
Q

rubble (broken stone)

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reservoirs or lakes

42
Q

These hydraulic structures include dams built of stone

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43
Q

water among different social groups.

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44
Q

over-exploitation

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excessive use and unequal access to

45
Q

In most of the cases

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46
Q

water scarcity occurs

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47
Q

due to

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48
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natural flow of water.

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49
Q

times. A hydraulic structure is a system to channelise the

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50
Q

Hydraulic structures have been constructed from ancient

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51
Q

3.2 Multi-Purpose River Projects

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52
Q

the

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53
Q

country.

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54
Q

This type of situation creates draught like conditions in

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55
Q

variations in seasonal and annual precipitation.

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56
Q

Water scarcity is caused due to low rainfall and

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57
Q

To prevent degradation of our natural

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58
Q

ecosystems.

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59
Q

productive

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60
Q

activities.

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61
Q

To ensure continuation of our livelihoods and

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62
Q

The causes of water scarcity are as follows

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63
Q

as water scarcity.

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64
Q

The shortage of water as compared to its demand is known

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65
Q

To ensure food security.

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66
Q

3.1 Water Scarcity and its Causes

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67
Q

drinking toxic water.

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68
Q

To safeguard people from health hazards caused by

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69
Q

Need for Water Conservation and Management

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70
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itat

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71
Q

ht

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72
Q

by 2025

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nearly two billion people will live in absolute water scarcity.

73
Q

recharged through hydrological cycle’

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ensuring that water is a renewable resource. It is predicted that

74
Q

Eresh water is mainly obtained from surtace run off and ground water. t is continually being renewed

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75
Q

with water

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but there is only a small amount of resh water that can be used.

76
Q

Water is a precious resource which is heCessary Tor me. three-1ounn or the Earth’s surface is cov

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77
Q

for

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78
Q

Nes

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79
Q

yar

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80
Q

ary in

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81
Q

Water Resources

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82
Q

CHAR

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