Water Security for std
10th
1) What is Water and Energy?
The
2014 theme of Water and Energy emphasized the close linkages and
interdependence of water and energy and brought attention to the water-energy
nexus About 8% of the energy generated globally is used
for pumping, treating and transporting water to various consumers. Furthermore,
generating and transmitting energy requires the use of water resources,
particularly for hydroelectric, nuclear,
and thermal energy sources.
The
aim of that year's theme was to facilitate the development of policies and
crosscutting frameworks that would bridge ministries and sectors. It was meant
to lead the way to energy security and sustainable water use in a green
economy
Journalists
from 11 countries in Asia met in Tokyo from 20 to 21 March 2014 to discuss the
importance of water. The event included discussion panels on topics such as
privatization of services, integration between water and energy and
modernization of water services. The journalists also developed four joint
stories and 20 individual story ideas for a network of Asian journalists
writing on water (and energy) in social media
2) Write about Water and Sustainable Development
With the theme 'Water and Sustainable Development', the
year 2015 provided an important opportunity to consolidate and build upon the
previous World Water Days to highlight water's role in the sustainable
development agenda The Millennium Development Goals (MDGs) were
to have been achieved by 2015, so the year lent itself to discussions of the
post-MDG period and aspirations for water and sustainable development. With the
launch of the Sustainable Development Goals (SDGs), World Water Day
gave specific emphasis to SDG 6, which calls for water and sanitation for all,
by encouraging discussion of how SDG 6 could be achieved by 2030.
3) Why Waste Water?
In 2017, the theme was "Why Waste Water?" which
was about reducing and reusing wastewater. The theme was a play on
words as it related to both the aspect of wasting water and issues
around wastewater, namely treatment and reuse. Wastewater is a
valuable resource to help achieve the Sustainable Development Goal Number
6. One aspect of Target 6.3 is to halve the proportion of untreated wastewater
and also to increase the recycling and safe reuse of water across the globe.
After appropriate treatment, wastewater can be used for a variety of purposes.
Industry, for example, can reuse water in cooling towers and
agriculture can reuse water for irrigation.
4) How Nature overcomes for Water
The theme in 2018 explored how nature can be used to
overcome the water challenges of the 21st century. This could be in the form
of nature-based solutions to water-related challenges. For example,
reducing floods, droughts, water pollution and
protecting ecosystems could be solved using natural means, which
nature uses, rather than man-made approaches. Restoring wetlands,
implementing constructed wetlands, green roofs, green
infrastructure, planting new forests, reconnecting rivers to floodplains, are
some examples. Each of these use natural processes to rebalance the water
cycle and improve human health and livelihoods.
5) Write about Valuing Water
The theme for 2021 is "Valuing Water". People
were invited to join a global conversation to "tell us your stories,
thoughts and feelings about water" on social media using the hashtag #Water2me.
The campaign looked beyond the issue of pricing, asking the public: "How
is water important to your home and family life, your livelihood, your cultural
practices, your wellbeing, your local environment?".
6)
How Much Is
Enough?
Because water is so important, you might
wonder if you're drinking enough. There is no magic amount of water that kids
need to drink every day. The amount kids need depends on their age, body size,
health, and activity level, plus the weather (temperature and humidity levels).
Usually, kids drink something with meals and
should definitely drink when they're thirsty. But if you're sick, or it's warm
out or you're exercising, you'll need more. Be sure to drink some extra water
when you're out in warm weather, especially while playing sports or exercising.
When you drink is also important. If you're
going to sports practice, a game, or just working out or playing hard, drink
water before, during, and after playing. Don't forget your water bottle. You
can't play your best when you're thinking about how thirsty you are!
7) Write
about India’s water crisis
India’s water crisis is a constant. Although
India has 16 per cent of the world’s population, the country possesses
only four per cent of the world’s freshwater resources. India is
water-stressed due to changing weather patterns and repeated droughts. And the
worst sufferes of this crisis are mostly women.
As many as 256 of 700 districts in India have
reported ‘critical’ or ‘over-exploited’ groundwater levels according to the
most recent Central Ground Water Board data (from 2017).
This means that getting water in these places
has grown more difficult as the water table has dropped. Three-fourths of
India’s rural families lack access to piped, drinkable water and must rely on
unsafe sources.
India has become the world’s largest
extractor of groundwater, accounting for 25 per cent of the total. Some 70
per cent of our water sources are contaminated and our major rivers are dying
because of pollution.
Women in India are usually
treated as second-class citizens. This crisis of water only puts them at a
higher risk of vulnerability. Fetching water in India has been perceived as a
woman’s job for centuries. Women, especially in the rural areas, walk miles to
collect water from the nearest source.
8)
What
is Waste water
Treatment?
Likely the most effective way to reduce water
pollution is by treating some of the water before it’s reintroduced into the
waterways. This is a highly effective solution because wastewater
treatment facilities are able to remove nearly all pollutants in
wastewater via a chemical, physical, or biological process. Sewage will be
taken through several chambers of the facility to slowly reduce its toxicity
levels.
In order for wastewater treatment facilities to work
exactly as intended, it’s important that the equipment remains in great
condition. There are a range of water treatment sensors that can be
used to be certain that the contaminants are being properly removed from the
water before the water is released back into the environment. These sensors
include pH sensors, conductivity sensors, and oxidation
reduction potential sensors.
9)
Water
Conservation
If you want to do
your part to keep water clean and pure in a manner that will protect the
environment, it’s important that you focus on water conservation when possible.
There are many ways that you can conserve water on a daily basis. Whenever
you’re shaving or brushing your teeth, it’s recommended that you keep the
water turned off.
If you take a shower every day,
opt for shorter showers that don’t go longer than you require. You could also
decide to take a bath, which uses much less water. In the event that your
landscape is outfitted with a garden, try to use only the amount of water that
your plants require. Water is a scarce resource, which is why it’s important
that you try to lessen your water usage when you can.
10) Effects of Water Pollution on Human Health
and the Environment
Water pollution is
damaging to both human health and the environment. When looking specifically at human
health, water pollution is known to:
Cause millions of
deaths every year
Increase the
possibility of cancer
Cause vascular
diseases and liver damage
Damage the spinal
cord
The harmful environmental
effects of water pollution include:
Accumulation of
heavy metals is toxic to shellfish and other species of fish
Organic matter
reduces the amount of oxygen in the water
Suspended particles
lessen the amount of sunlight that penetrates the water, which creates issues
with photosynthesis
It’s important to
prevent water pollution whenever you can because of how harmful this pollution
is to human health and the environment alike. If you want to reduce your
risk of suffering from a wide range of health conditions, it’s important that
you always have access to clean and pure water. As for the environment, clean
water is absolutely essential to make sure that the entire ocean ecosystem
remains relatively healthy.
10) Draw following diagram
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