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saiji uehara

on 10 September 2014

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Transcript of Water

All humans need water to survive. In modern industrialized countries, clean water is easy to find-we simply turn on a tap. IN some countries, water is a luxury. more than one billion people in the world do not have aces to clean safe water.
[ water for everyone ]
Water a main natural resource for all living creature and we almost use for everything like cooking, washing, drinking etc.,without water life is impossible on this Earth. We also need water for future generations. if we don't save water and waste it without knowing its importance., we may suffer in the future.

Most of the water ( safe drinking water ) are coming from Canada, USA, Mexico, Russia, Australia and Japan.

[where does the fresh drinkable water come from?]
The water is used for a lot of things for example, drinking, cooking, and more. Human need to have 60% of the water in the body. Every living thing need water to survive.
[Use Of Water]
Water is renewable resource, but
it takes a lot of times to make the CLEAN water
what is renewable and nonrenewable?
[ Is water renewable or non- renewable? ]
Renewable resource mean that the resource can be replenished naturally with the passage of time.
Non renewable resource mean that resource can't be replenished naturally with the passage of time.

To produce: fresh water

One sheet of A4 paper 10L
One slice of bread 40L
One glass of beer 75L
One cup of coffee 40L
One kilogram of rice 3,419L
One cotton T-shirt 4, 100L
one kilogram of beef 5, 497L
one tonne of aluminum 1,340,000L

[ The Water Cycle ]
The sun’s energy is the driving force behind the water cycle. The sun heats up water on land and in the oceans, lakes, and seas. The water changes from liquid to vapor in a process called evaporation. The water vapor cools and in a process called condensation forms droplets in the atmosphere. These droplets become clouds. The droplets (or ice crystals if it’s cold enough) gather and then fall from the sky in a process called precipitation. This precipitation gathers in streams and rivers and flows and becomes runoff, flowing back down to the oceans, seas, and lakes.

[Human's responsibility and irresponsibility]
Human dirt the water, so that the
river, ocean, and sea are getting dirty. We don’t have enough drinking water. And fish can’t live. It affect us because, if we don’t have enough drinking water, we will die. And the fish will get less. Also the water go around and around by evaporation, so when the dirty water evaporate and droplet as a rain, it means that we are showering with the dirty water.

[How to sustain the clean water?]
We still can sustain the clean water. Here is a
chart of the list that you can do to sustain the clean water.

[ The way to sustain the clean water]
*Help clean up streams
*Plant vegetation along stream banks
*Never pour chemicals down sinks or toilets
*Recycle and dispose of all trash properly

[Essential water ]
Fresh water is essential for life. People, and animal drink fresh water, and plant need it to grow. And their is only 3% of water in the world. And 1.8% is fresh water. We use fresh water for our homes, industry, and agriculture. 68.7% of world’s fresh water is frozen in glaciers, ice sheets, and ice caps. Glaciers are slow moving bodies of ice made by the buildup of snow. Icecaps are masses of ice that cover areas of land, and ice sheets are very large ice caps. There are 70% fresh water is in ice sheets in Antarctica and Greenland.

water is polluted by industry,
agriculture, and communities, making it unfit to drink. The major causes of water pollution are chemicals, pesticides, fertilizers, untreated sewage factory water and litter from storm water drains.

[Water pollution]
[Too much Algae ]
Farmers use chemical fertilizers and
pesticides on their crops. when it rains, some of these chemicals may wash into rivers. This can cause algal bloom in lakes and rivers. Algal bloom is the rapid growth of algae on the water’s surface. It blocks out sunlight and uses up oxygen in the water. Fish and plant need oxygen to live, so algal bloom can kill them. Some algae are poisonous and make the water undrinkable.

[Bad rain]
Each year, plastic water in water coastal areas kills up to one million sea birds
When heavily polluted air mixes
with the water in clouds, it falls back to earth as acid rain. Acid rain can make the soil so acidic that trees can’t grow. Too much acid in lakes and rivers kills fish and frogs. this then affects the waterbird population.

Polluted water greatly increase the risk of diseases such as hepatitis, cholera, dysentery and typhoid.
[water to your home]
Fresh water is pumped from a lake or dam to a water filtration plant, where it filtered to remove weeds fish and minerals. It is then pumped unto storage tanks. From the storage tanks it moves into underground water mains, which carry water to taps in our houses.
[Not enough water]
In the developing world many people cannot get enough water for drinking and cooking. if they can find the water, they may have to carry it long distance from rivers and wells. women and children spend a large part of every day fetching water. This prevents them from doing important work and going school.
[ Dirty water kills]
where there is no running water, people don't have flushing toilets and sewage systems. Human and animal waste ends up in rivers and can cause diseases. Every day about 6000 people in the developing word mostly children under the age five get sick and die from drinking polluted water.
What can we do
to help sustain
the clean water?
Full transcript