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    Water Resources

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    Kanishkha Sivasankar
    The Earth appears blue from space due to over 70% of its surface being covered by water. Nearly 97% of the water on Earth is salt water found in oceans, seas and saline groundwater; the remaining 3% is fresh water, over two thirds of which is frozen in ice caps and glaciers. Fresh water is found in lakes, rivers, streams, underground aquifers and the atmosphere and is essential for human and animal life as well as economic and industrial activities. However, increasing demand and pollution are placing greater stress on fresh water supplies.

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    Water Resources

    Uploaded by

    Kanishkha Sivasankar
    2K views20 pages
    The Earth appears blue from space due to over 70% of its surface being covered by water. Nearly 97% of the water on Earth is salt water found in oceans, seas and saline groundwater; the remaining 3% is fresh water, over two thirds of which is frozen in ice caps and glaciers. Fresh water is found in lakes, rivers, streams, underground aquifers and the atmosphere and is essential for human and animal life as well as economic and industrial activities. However, increasing demand and pollution are placing greater stress on fresh water supplies.

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    Water Resources- PPT

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    The Earth appears blue from space due to over 70% of its surface being covered by water. Nearly 97% of the water on Earth is salt water found in oceans, seas and saline groundwater; the remaining 3% is fresh water, over two thirds of which is frozen in ice caps and glaciers. Fresh water is found in lakes, rivers, streams, underground aquifers and the atmosphere and is essential for human and animal life as well as economic and industrial activities. However, increasing demand and pollution are placing greater stress on fresh water supplies.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    2K views20 pages

    Water Resources

    Uploaded by

    Kanishkha Sivasankar
    The Earth appears blue from space due to over 70% of its surface being covered by water. Nearly 97% of the water on Earth is salt water found in oceans, seas and saline groundwater; the remaining 3% is fresh water, over two thirds of which is frozen in ice caps and glaciers. Fresh water is found in lakes, rivers, streams, underground aquifers and the atmosphere and is essential for human and animal life as well as economic and industrial activities. However, increasing demand and pollution are placing greater stress on fresh water supplies.

    Copyright:

    © All Rights Reserved
    Download as PPTX, PDF, TXT or read online from Scribd
    Download as pptx, pdf, or txt
    of 20

    From outer space, the Earth

    looks BLUE in colour. Thats


    THE
    BLUE PLANET
    because approximately 70% of
    the Earth is covered with water
    97% of the water on the Earth is salt
    water, and only 3% is fresh water of
    which slightly over two thirds is frozen in
    glaciers and polar ice caps.
    The remaining unfrozen freshwater is
    mainly found as groundwater, with only a
    small fraction present above ground or in
    the air.
    Water resources is
    Are sources of water important on Earth and
    and they are useful without it we
    from the humans and cant
    animals. do many things
    or satisfied
    our needs.

    We would have to Water is a


    take care of the renewable natural
    water because in resources also like
    few years air and soil.
    there's not
    going to be enough
    water for us.
    The water cycle

    Transpiration
    Surface water

    Under water
    flow

    Ground water

    Frozen water
    CAUSES FOR WATER STRESS Increase in
    Population Power
    Domestic
    Industry
    Agriculture Increased demand
    for goods
    People Require
    food to eat

    bathing, flushing, Every item


    washing, that we use needs Water evaporation
    cooking, drinking water for production from reservoirs of larg
    hydro power projects

    Extensive farming.
    High usage of water
    Water stress!!!!
    Agricultural

    Industrial

    Household

    Recreation
    Its not just increased consumption

    Run off
    from Untreated
    agricultural industrial
    fields wastes

    Untreated
    municipal sewage
    Air pollutants
    Dissolve in
    rainwater

    Increasing pollution of freshwater sources


    ( surface and groundwater )
    Multi purpose river project is such a scheme which
    serves several purposes at one and the same time
    because of their uses they are rightly called the
    temples of modern India by Pt. Nehru.
    Such projects help in checking floods.
    Ample of water is available for irrigation.
    These projects help in electricity generation.
    They are used for in land navigation and fish-
    breeding.
    Additional stress in urban areas
    Lakes, tanks and ponds being destroyed. Land filled for
    construction purposes.

    Unsustainable extraction of groundwater in urban areas,


    affecting groundwater quality.

    Receive sewage that cannot be handled by sewage


    treatment plants.

    Disposal of solid and liquid wastes


    above or into groundwater
    aquifers.
    This is how the water is distribute on Earth. If
    you could see here that is most amount of
    water in the oceans.
    Water

    Management Conservation Harvesting

    Multi purpouse Reducing Rain water


    River project wastage of water harvesting
    India status and projections...

    Source: TERI
    This is another
    graphic about the
    worlds water and
    how it is distributed.

    Here also you could


    see that the total
    volume in the
    hydrosphere of
    water is 1.386 km2
    (100%)
    Fresh water is renewable
    resources like soil and air.
    The worlds is supplied by
    clean and fresh water and it is
    decreasing. Water is one of our
    most critical resources, but
    around the world it is under
    threat.
    Water demand already
    exceeds supply in many
    parts of the world and as
    the world population
    continues to rise, so too
    does the water demand.
    Rain Water Harvesting
    (RWH)- It is a process of
    collecting, conveying &
    storing water from rainfall
    in an area for beneficial
    use.
    Storage is done in tanks,
    reservoirs, underground
    storage- groundwater
    It is neither energy-
    intensive nor labour-
    intensive
    Install small shower heads to reduce the flow of
    the water. Water in which the vegetables & fruits
    have been washed - use to water the flowers &
    plants.
    At the end of the day if you have water left in
    your water bottle do not throw it away, pour it
    over some plants.
    Re-use water as much as possible
    Change in attitude & habits for water
    conservation
    Every drop counts!!!

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