This website uses cookies to ensure you have the best experience. Learn more

Sadness In World Essay

3748 words - 15 pages

Land pollution
From Wikipedia, the free encyclopedia
Jump to: navigation, search

This article may require cleanup to meet Wikipedia's quality standards. Please improve this article if you can. The talk page may contain suggestions. (August 2009)

This article does not cite any references or sources.
Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (August 2009)

Land pollution is the degradation of Earth's land surfaces often caused by human activities and their misuse of land resources. It occurs when waste is not disposed properly. Health hazard disposal of urban and industrial wastes, exploitation of ...view middle of the document...

This is unnatural, will deplete the soil of nutrients, allows diseases and pests to spread and, as it happens, it quickly exhausts all the natural resources in an area, causing the introduction of chemical fertilizers and foreign substances to the soil that poisons it.
[edit] Pesticides and herbicides
A pesticide is a substance or mixture of substances used to kill a pest. A pesticide may be a chemical substance, biological agent (such as a virus or bacteria), antimicrobial, disinfectant or device used against any pest. Pests include insects, plant pathogens, weeds, mollusks, birds, mammals, fish, nematodes (roundworms) and microbes that compete with humans for food, destroy property, spread or are a vector for disease or cause a nuisance. Although there are benefits to the use of pesticides, there are also drawbacks, such as potential toxicity to humans and other organisms.
Herbicides are used to kill weeds, especially on pavements and railways. They are similar to auxins and most are biodegradable by soil bacteria. However, one group derived from trinitrotoluene (2:4 D and 2:4:5 T) have the impurity dioxin, which is very toxic and causes fatality even in low concentrations. Another herbicide is Paraquat. It is highly toxic but it rapidly degrades in soil due to the action of bacteria and does not kill soil fauna.
Insecticides are used to rid farms of pests which damage crops. The insects damage not only standing crops but also stored ones and in the tropics it is reckoned that one third of the total production is lost during food storage. As with fungicides, the first insecticides used in the nineteenth century were inorganic e.g.Paris Green and other compounds of arsenic. Nicotine has also been used since the late eighteenth century.
There are now two main groups of synthetic insecticides - Organochlorines include DDT, Aldrin, Dieldrin and BHC. They are cheap to produce, potent and persistent. DDT was used on a massive scale from the 1930s, with a peak of 72,000 tonnes used 1970. Then usage fell as the harmful environmental effects were realized. It was found worldwide in fish and birds and was even discovered in the snow in the Antarctic. It is only slightly soluble in water but is very soluble in the bloodstream. It affects the nervous and endocrine systems and causes the eggshells of birds to lack calcium causing them to be easily breakable. It is thought to be responsible for the decline of the numbers of birds of prey like ospreys and peregrine falcons in the 1950s - they are now recovering. As well as increased concentration via the food chain, it is known to enter via permeable membranes, so fish get it through their gills. As it has low water solubility, it tends to stay at the water surface, so organisms that live there are most affected. DDT found in fish that formed part of the human food chain caused concern, but the levels found in the liver, kidney and brain tissues was less than 1 ppm and in fat was 10 ppm which was below...

Other Essays Like Sadness in World

Romeo and Juliet - Disputes Between the Montague and Capulet Families

795 words - 4 pages in the novel. In contrast, Baz Lurhmann’s version of Romeo and Juliet is very non authentic as most people drive cars and have the latest technology. This version represents the modern world we live in. Furthermore, in Zefferelli’s movie, Juliet does not see Romeo taking poison which is in accordance with the original play. But, in Lurhmann’s movie, Romeo drinks poison in front of Juliet and she is in disbelief that why would Romeo take such

Moods And Influences: The Musical Emotion This Is Mainly Just An Outline For A Major Essay. It Contains Every Main Idea, Concrete Detail And Commentary Without Any Filler

1120 words - 5 pages I. Through the use of elements such as variations in volume and tempo, musicians and composers, modern and old, use their creations as a catalyst to impart and influence their emotions concerning views on the world to the listener.A. Sadness is often a favored sensation that is displayed in music because of the makers need to be understood about their internal turmoil or to define the sadness and bring together people who relate with such

Romantic Writers Are Social Critics

970 words - 4 pages sorrow and sadness. The verses “In every cry of every man” (Blake, 94) and “in every infant’s cry of fear” (Blake, 94) are examples of this fact. People are not happy. They are living in fear all the time, inside the dark of a society influenced by materialism. Human beings are losing the real sense of life. This poem is written from a very negative perspective where people who exist in a dark and oppressive world, suffering the consequences of

The Reminiscing Poet

451 words - 2 pages life as a child, and brings them to the reader, as a mature poet, in order to explain his personal crises and the sensations that stimulated not only the young boy, but also the mature poet that Whitman became. The "unsatisfied love" and the "unknown want" that Whitman seeks to communicate can never be fully contented. Whitman's doubt and insecurity about the fate of himself and the world around him, and about his destiny as a man and as a poet

About Population Control In World/US, Written For College Admission

495 words - 2 pages sustain 6 billion people. Other population control methods of mother nature include cancer, antibiotic resistant bacteria, and starvation. Another form of massive population control could be a world war. This is most certainly the least favorable means of population control as it could hinder future generations from living, but it is definitely a possibility.I believe it would be in the best interest of everyone on earth to implement a

Assisted Suicide!

435 words - 2 pages why can't someone come to a conclusion through compassion and understanding without the law's conclusion of believing its murder. Assisted suicide should not be taken as a form of murder. If the patient asks to have their life ended, a caring and respectful doctor would agree to " put them down". Polls all across the world have been taken and the average result of people in favor for assisted suicide was 70% - 90%. All of those people decided that

What Is Demonstrative Communication

1200 words - 5 pages What is Demonstrative Communication? Stuart Mackey BCOM/275 July 2, 2012 Elia Parrish What is Demonstrative Communication? “Once a human being has arrived on this earth, communication is the largest single factor determining what kinds of relationships he makes with others and what happens to him in the world” (Virginia Satir). “Communication may have several interpretations for example to a student in class, it is a means of learning

Fake Myth: the World

611 words - 3 pages not work, the evilness in mankind will rise above and take over their being.” Quantum replied, “Don’t count out good, it may be the underdog, but I will bet it will grow stronger.” As Quantum and Darkness continued to watch, more things started to happen that even the god brothers were amazed. The beginning of birth, death, happiness, sadness, and much more started to bloom. It turned out that good and evil could not defeat each

Mysterious Benedict Society Analysis

1384 words - 6 pages stone.”. However, the mood of this story is quite important as well. The sadness of the orphaned children adds to the purpose of their mission to stop Mr.Curtain from bringing more sadness to the world by wiping people of their joy-filled memories. The way Stewart conveys the amazing, newly-found courage that Reynie discovers inside of himself to stop Mr.Curtain is unbelievable, mostly because he trusts so deeply in his friends. The climax, by

When I Was Young

991 words - 4 pages It happened when I was young, just a child of ten years old. I experienced the first loss of a loved one. No, itwasn’t a death in the family. Aunt Tallydid not die a sudden death. It wasn’t my beloved pet dog trotting off to doggy heaven. None of the above. But it felt like a death, just the same. My first loss of a loved one was when my best friend in the whole world was no longer in my life. Boom! Gone in the blink of an eye! Well, it

Emotion Recognition

2485 words - 10 pages , thousands of tiny facial muscles are at work. ERS creates a map in a 3D format, selecting points on a face that can be used as matching points. Then a mathematical algorithm is matched to the movements and facial expressions are calculated based on facial points such as lip curvature, eyebrow position, and cheek contraction. The software detects happiness, disgust, fear, anger, surprise and sadness with great accuracy. Marketers increasingly use this

Related Papers

Fear And Sadness Essay

1944 words - 8 pages Sociocultural issues;Fear and Sadness. The following assignment hopes to address systemic and sociocultural issues in a fictitious case study incorporating fear and sadness. The context of the environment shall be explored, followed by a short character description listing the issues concerning the individual, and how this relates to them in a sociocultural context, including a personal analysis on the type of counsellor I hope to be, to

Chronic Depression Essay

1344 words - 6 pages €™s a state of mind. It is a constant sadness, different from average emotions. These feelings last longer than normal sadness, and are usually much more severe. The text defines major depressive disorder as having at least five signs of depression that last two or more weeks and are not caused by drugs or a medical condition (Myers, 2007, p.477). Depression is felt due to neurotransmitters in the brain, which cause a chemical imbalance. There are

"The Defining Function Of The Artist Is To Cherish Consciousness." Max Eastman

1292 words - 6 pages sadness, he thought. That sadness is bad.That's the sadness they get before they quit or betray.That is the sadness that comes before the sell-out."Ernest Hemingway, an American novelist and short-story writer. He was the son of a country doctor. In 1917, after graduating from High School, E. Hemingway worked as a reporter for the Kansas City "Star". During World War I, he served as an ambulance driver in France and in the Italian infantry. After

Top Songs Essay

626 words - 3 pages – Eleanor rigby John lennon – imagine Delta goodrem – born to try Karmin – acapella Prince – purple rain Missy Higgins – scar Missy Higgins – the special two Missy Higgins – the sound of white Missy Higgins – everyones waiting Dana fuchs – bliss avenue Coldplay – clocks Coldplay – fix you Lana Del Rey –summertime sadness Imagine dragons – on top of the world Panama – we have love Fingertips ft lola siren– do it (on the knightly) Boy