Water is an essential resource for all life on Earth, yet only a small percentage is available for human use. Most of the Earth's water is salt water located in oceans, while freshwater is found in ice caps, glaciers, groundwater, lakes, and rivers. However, water scarcity is a growing problem as over two billion people lack access to clean drinking water and agriculture, which uses 70% of the world's freshwater, is inefficient. Conservation of our limited freshwater resources is critical to sustain life and protect the environment.
This presentation talks about the Water Uses, Water Forms and Distribution, Availability, Fresh Water Shortage, Water Use Problems and Conflicts Increase Water Supply, Floods and Drought
It talks about the shortage of water all across the globe. So people should use it effectively without unnecessary wastage.
This presentation talks about the Water Uses, Water Forms and Distribution, Availability, Fresh Water Shortage, Water Use Problems and Conflicts Increase Water Supply, Floods and Drought
It talks about the shortage of water all across the globe. So people should use it effectively without unnecessary wastage.
social science project ppt on Water Resources
Contents:
Introduction.
Prior Knoledge.
About Water resources.
Division of water resources.
Source of Water resources.
Uses of Water.
Water is the basic need of life on the earth. The useful freshwater resources are less. It is the time to save, conserve and manage the water resources for next generations.
Fresh Water resources
Global Overview
Volume of water stored in the water cycle's reservoirs
Scarcity of fresh water
Water consumption for food production (I)
Competing water uses
Fresh Water supply
Problems related to Water crisis
Threats to fresh water resources
Distribution of population and water resources
Pressure of freshwater ecosystem
Fresh Water Outlook
Water in China
Desalination of sea water as fresh water supply
must watch this power point presentation because of we all the west the water in many tips but really we need save the water.at least i say it is not only Indian problem but the all over world problem at today.
Water management is a global issue and it is the prime duty of all the people to save and conserve water so that it can be passed on safely to the future generation. Viewers please watch the ppt and leave your likes and comments.
This is a Case Study on Water Conservation. It includes information about topics like Why conserve water?; How can WE conserve water? etc.
Hope its helpful for you!
social science project ppt on Water Resources
Contents:
Introduction.
Prior Knoledge.
About Water resources.
Division of water resources.
Source of Water resources.
Uses of Water.
Water is the basic need of life on the earth. The useful freshwater resources are less. It is the time to save, conserve and manage the water resources for next generations.
Fresh Water resources
Global Overview
Volume of water stored in the water cycle's reservoirs
Scarcity of fresh water
Water consumption for food production (I)
Competing water uses
Fresh Water supply
Problems related to Water crisis
Threats to fresh water resources
Distribution of population and water resources
Pressure of freshwater ecosystem
Fresh Water Outlook
Water in China
Desalination of sea water as fresh water supply
must watch this power point presentation because of we all the west the water in many tips but really we need save the water.at least i say it is not only Indian problem but the all over world problem at today.
Water management is a global issue and it is the prime duty of all the people to save and conserve water so that it can be passed on safely to the future generation. Viewers please watch the ppt and leave your likes and comments.
This is a Case Study on Water Conservation. It includes information about topics like Why conserve water?; How can WE conserve water? etc.
Hope its helpful for you!
On Earth water has too many forms and variety which
are necessary specifically for particular geographical as well as
environmental surroundings. Below 1% of the world's fresh
water (0.007% of all water on earth) is reachable for direct
human uses. Water pollutions now become a part of concern and
disquiet in country like India. Large parts of water which are life
supportive get contaminated because of illegal activities of human
beings. Water effluence is a major problem globally. It is the
leading worldwide cause of deaths and diseases, and that it
accounts for the deaths of more than 14,000 people daily. In
addition to the acute problems of different problems in
developing countries, industrialized countries continue to
struggle with water pollution problems as well. There are many
inorganic metals which are contaminating water bodies which
serve life to large part of India, Arsenic (As) is one of the biggest
threats for water bodies. High toxicity of Arsenic poses a serious
risk not only to ecological systems but also for human health.
There is availability of sophisticated techniques for arsenic
removal from contaminated water, development of new
laboratory based techniques along with cost reduction and
enhancement of conventional techniques are essential for the
benefit of common people. This paper is based on the future
aspects, for removal of Arsenic from drinking water or the water
of different rivers like Ganga, Gomti and Yamuna etc which
humans are consuming for domestic purpose. Demograph
estimate that around 52 millions peoples are drinking ground
water with arsenic concentrations above the guidelines of World
Health Organization. WHO proposed a parameter or MIC for
Arsenic i.e. of 10 parts per billion (ppb) or 0.010 Mg/L, it is found
that level of Arsenic has been increased vigorously in many
rivers. Objective is to apply Bioremediation technique with the
help of batch culture that needs Bioremediators to detoxify
contaminated water and helps in maintaining the original quality
of water.
Water Resources and Water PollutionLife on planet Earth would be.docxmelbruce90096
Water Resources and Water Pollution
Life on planet Earth would be impossible without water. All life forms, from unicellular bacteria to multicellular plants and animals, contain water. Humans are composed of approximately 60 percent water by body weight and we depend on water, not only for our survival, but for our convenience: We drink it, cook with it, wash in it, travel on it, and use an enormous amount of it for agriculture, manufacturing, mining, energy, production, and waste disposal. Though 71% of the Earth’s surface is covered in water, only 0.024% of the overall water supply is available as liquid freshwater that is easily accessible. It is one of the most poorly managed resources, easily wasted and often polluted. The available freshwater is collected, purified and distributed in the hydrologic cycle, but this cycle is easily interrupted by overloading with pollution, reducing wetlands, and reducing forests.
We get water from groundwater and surface water. Groundwateris water that seeps into the ground between spaces in soil and gravel until it reaches impenetrable bedrock. One of the most important sources of freshwater. The top of the groundwater zone that moves up and down based on weather is the water table. The water table drops in level when humans remove water at a faster rate than it is replenished. Surface wateris freshwater from precipitation and melted snow that flows into lakes, wetlands, rivers, and eventually into the oceans.
Water shortages are caused by many factors including dry climate and drought. In some places, the human population uses water at a faster rate than the water is replenished. 30% of the Earth’s land mass now experiences severe or extreme drought and 1 billion people lacked regular access to clean water for drinking, cooking, and washing.
Water Supplies
Aquifers, underground water supplies, are renewable as long as the groundwater doesn’t become contaminated and withdrawn too quickly. Most aquifers around the world, and in the largest food producing countries, are being used up quicker than their rate of replenishment. Dam and reservoir systems are used to capture and hold runoff water. The collected water can be released at need to control flooding, supply water for farming and cities, and to produce electricity. The use of dams and reservoirs has increased the amount of reliable surface runoff by one-third. Unfortunately, these systems also displace people, flood productive lands, and disrupt the ecological services rivers provide.
Tunnels, aqueducts, and underground pipes transfer runoff from dams and reservoirs to water-poor areas. These transfer systems can be wasteful and environmentally harmful by shrinking the water source as more is transferred to water-poor areas. Another option for freshwater is desalinization which involves removing salts from ocean or brackish water. Usually desalinization costs a lot because of the energy required; it also kills many marine organisms and creates salty.
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Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
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Water resources
1.
2. Introduction
Water is an inexhaustible and valuable natural resource.
The existence of the plant and animal kingdoms depends
on water. So water is called "LIFE“.
It is indispensable in our day-to-day life in preparing food,
for bathing and drinking etc. Water is also essential for
irrigation, generation of hydro-electricity, navigation and
industries.
While 67% of Earth’s surface is covered by water, only less
than 2.7% of global water is freshwater.
Most of the freshwater (2.05%) are locked in ice caps and
glaciers. Only less than 0.7% is available for human use.
3. Global overview
Over two thirds of the earth's surface is
covered with water, 97.2% of which is
contained in the five oceans. The Antarctic ice
sheet, containing 90% of all fresh water on the
planet, is visible at the bottom. Atmospheric
water vapour can be seen as clouds,
contributing to the earth's albedo .
Iceberg and Polar cap store most of the fresh
water on Earth.
4.
5.
6. Sources Of Fresh Water
There are three types of fresh water sources.
Surface water.
Ground water.
Desalination.
7. Surface water
Surface water is a water in a river , lake or fresh water
wet land.
Surface water is naturally replenished by precipitation
and naturally lost through discharge to the oceans
evaporation.
The main uses of surface water include drinking-water
and other public uses, irrigation uses, and for use by
the thermoelectric-power industry to cool electricity-
generating equipment.
8. GroundWater
Ground water is a part of the
hydrologic cycle that lies beneath
the surface, but is tied to surface
supplies.
Ground-water, of course, is the
largest potential source of supply of
fresh water in the hydrologic cycle-
larger than all surface lakes and
streams combined.
Groundwater movement depends on
the slope of the water table which,
to a certain extent, follows the
contours of the land surface.
9. Desalination
This means taking out
the salt and any bacteria
and pollution. This
process is now being
used all around the world
to provide people with
a much
needed dependable
supply of fresh water.
In ancient times, many
civilizations used this
process on their ships to
convert sea water into
drinking water.
10. Distributionof water
The distribution of water on the
Earth’s surface is extremely
uneven. Only 3% of water on the
surface is fresh. the remaining
97% resides in the oceans.
Of freshwater, 69% resides in
glaciers, 30% underground, and
less than 1% is located in lakes,
rivers and swamps.
Looked at another way, only one
percent of the water on the Earth’s
surface is usable by humans, and
99% of the usable quantity is
situated underground.
13. Consumption of water
Water consumption is defined as the
freshwater taken from ground or
surface water sources, either
permanently or temporarily, and
conveyed to the place of use.
Additionally, 15% of freshwater is
used for energy supply, which
jeopardizes the availability of water
to ensure increased energy security.
Agriculture uses 70% of the world’s
accessible freshwater where 60% is
wasted due to inefficient farming
practices and irrigation management
systems.
At a world level, it is estimated that
water demand rose by more than
double that of the rate of population
growth in the last century, with
agriculture being the largest user of
water.
14. Scarcity of water
Water scarcity is the lack of sufficient
available water resources to
meet water needs within a region.
It affects every continent and around 2.8
billion people around the world at least
one month out of every year.
Worldwide, just under 900 million people
lack reliable access to safe water that is free
from disease and industrial waste.
And forty percent do not have access to
adequate sanitation facilities.
The result is one of the world's greatest
public health crises: 4,500 children die
every day from waterborne diseases, more
than from HIV-AIDS, malaria, and
tuberculosis combined.
One fifth of the world's population lives in
areas where water is physically scarce, and
a quarter of the population faces shortages
due to lack of infrastructure.