Oracle Application Development
Framework 11g Essentials
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1.You select a binding In the page definition file and set the ChangeEventPolicy property to ppr.
What effect does this action have on the way the page is rendered?
A.It allows a component to partially refresh another component whose partialSubmit property is set to true.
B.When a user selects a new value...
...Gathering water for African villages is a job placed on the women. They spend countless hours carrying water from distant sources. These sources are often polluted and this continuous effort is an enormous waste of time that could be better used for childcare and education (Wanja). According to J.W.N. Riviere in a publication called "Threats to the Worlds Waters", women and girls in Africa spend 40 billion person hours a year hauling polluted water. Both natural and man-made pollutants have damaged water quality in Africa and India, which has adversely affected the population's health and wasted time.
The poorest coverage for water supply and sanitation is in Africa. It is estimated that the current investment is 1.3 billion dollars per year. This amount of coverage is completely inadequate for this continents needs (Wanja). It is estimated by a report called "Year 2000 Progress Report" from the World Health Organization that the funds necessary on a yearly basis for water supply and sanitation is 2.2 billion dollars. This report also stated that over half of the population of Africa currently lacks safe drinking water. It also says that two thirds of the population doesn't have a sanitary means of human waste disposal.
In Africa, polluted water, water shortages, poor water management, and improper waste disposal all...
1) What is waterpollution?
2) What causes waterpollution?
3) Name the 2 sources of pollution
4) What are the different types of waterpollution?
5) How can waterpollution be prevented?
6) Pollution can be: MICROBIOLOGICAL, CHEMICAL, SUSPENDED MATTER, NUTRIENTS, OXYGEN-DEPLETING SUBSTANCES.
Give one real example for each cse with a brief explanation.
1) 1- Waterpollution is the contamination of water bodies, very often by human activities.
2- Waterpollution is caused by:
• Industrial waste
•Sewage and waste water
•Accidental oil leakage
•Burning of fossil fuels
•Leakage from sewer lines
•Chemical fertilizers and pesticides
•Leakage from thr landfills
•Underground storage leakage
3) Point-source pollutants in surface water and groundwater are usually found in a plume that has the highest concentrations of the pollutant nearest the source (such as the end of a pipe or an underground injection system) and diminishing concentrations farther away from the source. The various types of point-source...
WaterPollution: A Global Problem
In 2009, the International Coastal Cleanup (ICC) collected 3.4 million kg of marine debris worldwide; 10.2 million individual pieces of rubbish in 108 countries. Waterpollution is everywhere and is a continuing problem caused by our careless behavior, which needs to be stopped. It is affecting people as well as animals all around the world. First, waterpollution causes many problems all over the world that effect marine life as well as humans. Second, causes can come from anywhere, and they come from all types of places from all around the world. Lastly, solutions to waterpollution are essential if people want to stop contaminating the water they drink and if they want to save marine life. Waterpollution is a problem that affects everyone and should be stopped.
Waterpollution causes many problems that affect people and animals in their daily lives, and can harm health, as well as cause death. First, about 10 percent of all dredged material, which is chemical waste, is polluted with heavy materials and dangerous substances. When these materials find their way into the ocean, marine organisms suffer toxic effects and seafood is often contaminated (“Ocean...
September 27, 2010
Waterpollution is when a body of water is adversely affected due to the addition of large amounts of materials to the water. (www.imbgnet.net) There are four types of waterpollutions and I’m going to describe each one of them. I’m also going to tell you the solutions that I can up with and how I’m going to get the government and people involved to help. It is a lot of things that we don’t know aboutwaterpollution and how bad it is for our health. Every year, 14 billion pounds of sewage, sludge, and garbage are dump into the water. (www.thinkquest.com)
Nineteen trillion gallons of waste also enter the water annually and it is a hard thing to clean up. The first type of waterpollution I’m going to talk about is Toxic substance; which is a chemical pollutant that is not a naturally occurring substance. This is what we would call man made material that we dump into the water every day. The second one is Organic substance that occurs when an excess of organic matter such as manure or sewage enters the water. This is a natural thing that we as humans can try to stop at a point in time.
Waterpollution is a point...
According to the Columbia Encyclopedia, waterpollution is defined as contamination of water resources by harmful wastes. In most cases this contamination is a result of people overloading the water environment with wastes. The scope of this problem covers any and all water sources including but not limited to streams, lakes, underground water, bays or oceans.
II. Statement of Problem
It is no misconception that water is a necessary compound to all life on Earth. Absolutely all organisms need water in one form or another. Plants and animals including humans require water that is reasonably pure, and they cannot survive if their water is encumbered with toxic chemicals or harmful microorganisms. If severe, waterpollution is capable of harming and even killing fish, birds, and other animals, in some cases wiping out the entire population of a species in that affected area. Pollution makes streams, lakes, and coastal waters unpleasant to look at, to smell, and to swim in. The fish and shellfish that live in these polluted waters are no longer suitable for consumption, so the harvesting of such could have impairing effects to the general population. Even though illness might or might not appear initially,...
...Water Resource Plan
Everyone knows that to survive you need water. What everyone does not know is that what is being put into the water that we drink, that we swim in, and the water that we use for everyday activities has made it unsafe for everything that needs it to survive, plants, animals, and even humans. To sum it up our planet and everything in to can not survive without water. Many states have water that is very unsafe to drink and has made a lot of people very sick. Without water plants will die, animals will die and so will people. So the big question is why are we doing this to the most important thing in the world? Look at it this way, the one thing in this world that every living thing needs to survive is being taken advantage of only because it has always been there. In this paper I plan on informing people of the issues that have and still are taking place in our world, and I plan on informing everyone of a solution to prevent this issues from continuing.
“Although Earth has plenty of water, about 97% of it is salty and not consumable by most terrestrial organisms.” “Water experts predict the in 2025; more than one-third of the human population will live in areas where there isn’t enough fresh water for drinking and irrigation.” (Environmental Science. (2007)(Chapter 10)(p. 236). Thinking...
...Waterpollution in China started with industrial development and has become more one of the most devastating environmental problems faced by the country today.
From the chart, we can see that as the country’s GDP rises, the volume of wastewater discharge increases as well. This suggests that to achieve a rise in GDP, the environment has to be sacrificed. The reason for this is that wastewater treatment techniques and facilities have fallen far behind from the growth of industrial production and city construction. Official data shows that more than 4.4 billion tons of untreated or partially treated wastewater is dumped into the river annually, and this has incurred an economic loss of 7 billion yuan.
All of these have resulted in more than a third of China’s rivers and 90% of its urban water supplies to be heavily polluted. A famous example would be the Pearl River Delta contamination in Guangdong province. The delta was previously known as “String of Pearls” but the contamination was so bad that it is now known as the Poisoned Pearl.
There are 2 main causes of waterpollution in China, namely pulp and paper production and manufacturing.
The paper industry is one of the most fatal industries as it has the highest chemical oxygen demand and contributes most to China’s organic water...