Types Of Pollution And Their Effects Environmental Sciences Essay

Types Of Pollution And Their Effects Environmental Sciences Essay The introduction of harmful waste materials, other forms of contamination which are a hazard to the life sustaining atmosphere of the planet earth is commonly known as pollution. Pollution affects the ecosystem of the planet causes discomfort to almost every living organism on the face of the planet. It is the result of ever-increasing pollution into the environment that the ozone layer over the earth that defends us from the damaging ultraviolet rays of the sun is being depleted. Recent rise in the temperature of many countries across the world is also the result of the same. (Pollution) Types of Pollution Typically, there are main types of pollution, which are: Air Pollution Water Pollution Noise Pollution Land Pollution Air Pollution Air Pollution is the contamination of air in the atmosphere that is important for every living being on the planet to sustain life. The common air pollutants (the substances which cause pollution) include smoke and harmful gases from industries, CFCs and oxides produced by the automobiles, the burning of solid wastes, i.e. sulphur oxides, CO, CO2, particulate matter, NH3, smoke produced by explosives and other radioactive particles (e.g. Radon gas is released into the atmosphere because of radioactive decay within the Earths crust) being released into the atmosphere. Air Pollution can also be a consequence of the natural disasters such as a volcanic eruption. Ill-effects of Air Pollution Air pollution causes depletion of the protective ozone layer. It also has dire health effects on the individuals living on earth; it may cause respiratory problems, asthma, lungs and heart diseases, etc. Air pollution also affects the cardiovascular system, but the effects depend on the individuals exposure to the pollutants. How to prevent Air Pollution Since some of the reasons of air pollution are natural, there is hardly any sort of possible human control. But, for the human caused pollution, one of the finest ways to stop air pollution is to walk more or cycle more, rather than driving cars and other motor vehicles, because the emission from them is the most prominent form of air pollution in todays context. Regular and on-time maintenance of vehicles can also help reduce the pollution substantially. Usage of bio-fuels, like CNG, and bio-gas also aid prevention of pollution in the atmosphere. In order to make sure that these rules are being followed there could be some kind of legislation from the government in the respective countries to ensure that there is reduced pollution ever. (Pollution, Water Pollution, Air Pollution) Water Pollution Water is one of the most important natural resources on the planet which is one of the necessary elements to sustain life on earth. Addition of harmful products to water which make is unusable is commonly known as Water Pollution. These products could be chemical, biological or physical materials that deteriorate the quality of water and the lives associated with it. Some of the most common water pollutants include industrial wastes (which are directly dumped into the sea of lakes making the water unfit for fishes and other organisms living in the water), domestic and farm wastes, oil spills, pesticides, as well as mining and agricultural wastes. (Pollution, Water Pollution, Air Pollution) Ill-effects of Water Pollution About 40% of the deaths globally are accounted by water pollution. Polluted water affects the flora and fauna of the sea organisms and these organisms when consumed by humans, cause harmful diseases. Also, the contamination of drinking water, which is produced from natural water resources, causes diseases such as jaundice, cholera, or typhoid. How to prevent Water Pollution As such, there are no ways to ensure prevent water pollution. The most effective way to prevent water pollution is to generate consciousness among the masses about the ill-effects of the same and if possible, enforce laws to prevent disposal of harmful wastes into the water. Noise Pollution It is the excessive cacophony in the environment, primarily due to sounds created by machines. It is generally caused by loudspeakers, microphones, loud music, noise from industries, from construction and civil engineering works etc. Ill-effects of Noise Pollution The main problem that noise pollution, (also known as sound pollution), causes is that it affects the physiological and psychological health of an individual who is exposed to the excessive sound. Sometimes, it can even cause deafness and impaired hearing. It also causes annoyance which might result on blood pressure variations, ultimately leading to coronary diseases. How to prevent Noise Pollution Again, legislation can be one of the most effective ways to reduce noise pollution. Also creation of airports, bus stands etc away from residential areas can be an effective way. (Noise Pollution and its control) Land Pollution Degrading the earths surface by improper commercial, industrial, agricultural and domestic activities is known as land pollution. Dumping of e-wastes and other industrial wastes into the land causes land pollution. Insecticides, pesticides etc also harm the agricultural land and the soil. Mining, deforestation, oil refineries construction debris, etc are the most common land pollutants. Ill-effects of Land Pollution The agricultural capability of soil gets affected as a result of the land pollution, making it infertile and unusable for farming purposes. Also, it might result in the lowering of water table inside the ground. How to prevent Land Pollution In order to prevent land pollution, individual should be more focused on buying bio-degradable products and the products can also be recycled, i.e. recycling the inorganic materials should be an important focus. As far as organic compounds are considered, they can be dumped in places which are far away from residential places or agricultural lands. Reducing the use of pesticides and insecticides can also aid land pollution prevention. Oil spilling has to be taken care of. Anti-littering campaigns can be initiated to create awareness about ill-effects of littering. Conclusion In conclusion, it would be safe to say that pollution is very important to be controlled if life is intended to be sustained on the planet. It may be in different forms but if the masses can be properly informed and educated along with strict legislations, pollution can be controlled.

How my brother leon brought home a wife

â€Å"How My Brother Leon Brought Home a Wife† Leon and Bald waited for the arrival of Maria at the barrio. Maria was afraid that she will not be accepted by Loon's father because she may not able to adapt their way of living in the province. Bald was ignoring to his older brother's question about why did d they have to go to WAIS instead of Camino Real. The reason is that their father wanted to t est. Maria if she is worthy to be Loon's wife. Bald discussed their travel to his father. Appreciate Maria. Because she accepted and respected Leon for what he areaIll is. She didn't care what Loon's life back in Encumbrance. She was a supportive and a love inning wife to Leon. She was so endearing and kindhearted lady. She was very keen to meet Loon's family. The fact that the rural is different from the city can be somewhat disco raging but the closer hey get to the house, Maria still manages to overcome any trials. SSH e admits for having some fear, but she also shows clearly it d id not stop her. Believe that social status is not a hindrance if you truly love each other. How My Brother Leon Brought Home a Wife Baldo and his older brother Leon were both waiting for their visitor riding a carratela. When Baldo sa his older brother's wife, who is Maria, he was amazed by her beauty as he narrates their journey to their home in Nagrebcan. Maria was felt a bit anxious because of meeting Leon and Baldo's parents for the first time, but along their way home, she discovered the differences of the life of the people lived there and the life in the city where she met and fell in love with Leon. Leon and Baldo waited for the arrival of Maria at the barrio.Maria was afraid that she won't be accepted by Leon's father because she may not able to adapt their way of living in the province. Baldo was ignoring to his older brother's question about why did they have to go to Waig instead of Camino Real. (The reason is that their father wanted to test Maria if she is worthy to be Leon's wife.) Baldo discussed their travel to his father.Leon's entire family talked to Maria. his Father's voice became livelier th an before when he talked to her (which means he accepted her wholeheartedly.) We should respect and accept one's life.Social status is not a hindrance if you truly love each other. Meeting your special someone to your family is the right thing to do. One may have to sacrifice small part of his/her life in order to have a happy life.Leon/Noel – Maria's husband, older brother of BaldoMaria – Leon's wifeBaldo – Leon's younger brother, also the narrator of this story Mother and Father of Leon and BaldoAurelia – Leon and Baldo's younger sisterLabang – the carabaoWe should respect and accept one's life. Social status is not a hindrance if you truly love each other. Meeting your special someone to your family is the right thing to do. One may have to sacrifice small part of his/her life in order to have a happy life.

Operator In A Call Centre In India

Suppose you are working as an operator in a call centre in India and receiving calls from Americans and Londoners. How would you handle such calls? Ans: As an operator first thing which I would try and ask politely would be that what is the route cause of the problem of the customer and would try and give time for explaining or removing out the frustration after which the customer would then have patience in listening to what we would try and explain.As an operator I would rectify the problem by all the better means and try to explain the customer in a better way that he would get convinced completely with the solution which could rectify the same. I would also make sure that the customer has any doubts or clarifications regarding the same and reconfirm the same from the customer about the solution explained to him was clear. As an operator I would co-operate with the customer to completely resolve the problem which ultimately satisfy the customer.I would also thank the customer for having the patience and giving us an opportunity to troubleshooting the issue and getting it rectified. I don?t want to speak to you. Connect me to your boss in the US,† hissed the American on the phone. The young girl at a Bangalore call centre tried to be as polite as she could. At another call centre, another day, another young girl had a Londoner unleashing himself on her, â€Å"Young lady, do you know that because of you Indians we are losing jobs? † The outsourcing backlash is getting ugly.Handling irate callers is the new brief for the young men and women taking calls at these outsourced job centres. Supervisors tell them to be „cool?. Avinash Vashistha, managing partner of NEOIT, a leading US-based consultancy firm says, â€Å"Companies involved in outsourcing both in the US and India are already getting a lot of hate mail against outsourcing and it is hardly surprising that some people should behave like this on the telephone. † Vashistha says Indi an call centre?s should train their operators how to handle such calls. Indeed, the furor raised by the Western media over job losses because of outsourcing

UP DATED BENEDICT ARNOLD essays

UP DATED BENEDICT ARNOLD essays Benedict Arnold was born in Norwich, Connecticut. Arnold received his schooling at Canterbury. While away at school, a few of Arnolds siblings passed away from Yellow Fever. Arnold was a troublesome kid that would try just about anything. As a 14-year-old boy, he ran away from home to fight in the French and Indian War. Later, Benedict Arnold left and returned home through the wilderness alone to work with his cousins. The army had excused him without penalty because of his young age. In 1762, when Benedict was just twenty-one years old, he went to New Haven, Connecticut where he managed a book and drug store and carried on trade with the West Indies. (B Arnold) In 1767, he married Margaret Mansfield, a daughter of a sheriff of New Haven County. They had three sons together. When the Revolutionary War was just beginning to break out, Benedict Arnold became a prosperous ship owner, merchant, and trader. Within days, Arnold became very interested in the war once again and joined the American Army. All of the battles Arnold commanded over showed immense courage and bravery, but he was soon known as Americas greatest traitor due to his betrayal of the Americans. As the Revolutionary War broke out, Benedict Arnold decided to volunteer to head over 1,000 men up to Maine. He asked for additional men from his companies to join the army. Arnold then became a captain in the Connecticut Militia. General George Washington had his favorites, which Arnold was among the very few. So, Benedict Arnold was sent on an infernal 500 mile march to Maine by Washington, also known as The Rock. (Macks 72) Benedict Arnold and only about fifty percent of his original soldiers made it to the St. Lawrence River where they met up with General Montgomery. Their plan was to attack th e British Army by surprise in Quebec City, Canada. Both Montgomery and Arnold arranged to start on the lofty mountainsides of Quebec. Arnold and his so...

Atomic Mass and Mass Number Chemistry Review

Atomic Mass and Mass Number Chemistry Review Atomic mass and atomic mass number are two important concepts in chemistry. Heres a quick review of what is meant by atomic mass and atomic mass number, as well as how actual particle mass relates to atomic number. Atomic Definitions Z is used to signify the atomic number or proton number of an atomZ # of protons of an atomA is used to signify the atomic mass number (also known as atomic mass or atomic weight) of an atomA # protons # neutronsA and Z are integer valuesWhen the actual mass of an atom is expressed in amu (atomic mass units) or g/mol then the value is close to A Are Atomic Mass and Atomic Mass Number the Same? Yes and no. If you are talking about a sample of a single isotope of an element, the atomic mass number and the atomic mass are either very close or else the same. In introductory chemistry, its probably fine to consider them to mean the same thing. However, there are two cases in which the sum of the protons and neutrons (atomic mass number) is not quite the same as the atomic mass! In the periodic table, the atomic mass listed for an element reflects the natural abundance of the element. The atomic mass number of the isotope of hydrogen called protium is 1, while the atomic mass number of the isotope called deuterium is 2, yet the atomic mass is listed as 1.008. This is because natural elements are a mixture of isotopes. The other difference between the sum of protons and neutrons and the atomic mass is due to mass defect. In a mass defect, some of the mass of the protons and neutrons is lost when they bind together to form an atomic nucleus. In a mass defect, the atomic mass is lower than the atomic mass number. Source Jensen, William B. (2005). The Origins of the Symbols A and Z for Atomic Weight and Number. J. Chem. Educ. 82: 1764.

Instruction Memo Essay Example | Topics and Well Written Essays - 250 words

Instruction Memo - Essay Example The memo does not sufficiently tell why the action was considered valid in the first place. 2. The memo fails to mention the basis on which Amazon Services was actually selected. In most cases, such services require someone who has far-reaching knowledge of the vessel and must have provided similar in the recent past or offered the opportunity under competitive procedures. 3. A clear statement of any clearances as well as approvals received for the procurement action considered unauthorized, including the names and titles of the people who ratified the contract. In this case, none of these statements is provided or directions indicating that it is attached. In this case, nothing is actually mentioned, so it leaves people quizzing who actually was aware or who sanctioned the procurement action. In fact, what comes out looks like the author also participated in the process only to rescind upon realizing it would cost a lot. a. On Thursday, July 20, 2010 research vessel suffered a shattering failure to the starboard diesel engine and associated running gear. The starboard main engine overheated causing damage to the associated running gear; shaft, propeller, bearings and rudders. This failure rendered the vessel unable to operate in a safe manner and emergency repairs were required. b. Operations Coordinator determined that emergency drydock repairs were necessary and contracted Amazon Services. The vessel was safely stored for the weekend since the work would not commence until Monday, July 24, 2010 to surmise the extent of the damages and give an estimate for repair. c. A contracted captain for the vessel was appointed to oversee the repair in my absence. However, upon further inspection of the vessel, we discovered that the amount that has been agreed is too

IT - WiMAX Networks Essay Example | Topics and Well Written Essays - 750 words

IT - WiMAX Networks - Essay Example 3) The architecture should be compatible with different usage models like fixed, portable, nomadic, etc. 4) The architecture should have the capability to provide IP services and separate the access network and connectivity network. 5) The architecture should provide assistance to network access provider (NAP) the network service provider (NSP), and the application service providers (ASP). 6) By utilizing the internet engineering, the architecture should provide assistance to3GPP/3GPP2, Wi-Fi, and wired networks. Image Source: [1] Mobile WiMAX Network The architecture of mobile WiMAX consists of All IP platform, all packets technology and no circuit switch telephony. The open IP architecture provide network operator’s huge elasticity while choosing way outs that work with legacy networks or so as to use the most advanced equipments and in shaping what functionality they desire their system to maintain. They can select from an upright incorporated seller to facilitate offers a turnkey way out or they can decide on and choose from a thick ecosystem of best-of-breed companies with a more thin focus. The architecture permits modularity and elasticity to provide somewhere to stay a wide variety of consumption options such as small scale to large scale, urban, suburban and rural coverage, mesh topologies , flat , hierarchical and their variant, and finally, co-existence of permanent , wandering moveable and mobile usage models. Mobile WiMAX has equally the mobility and Multiple Input Multiple Output (MIMO) functionalities to the IEEE 802.16- 2004 protocol. It is one of two protocols accept by the WiMAX forum with the other one being the IEEE 802.16 – 2004. The WiMAX system architecture can logically be characterized by a Network Reference Model (NRM). ASN The ASN is commonly referred as the access network of WiMAX and its major responsibly is to offer the communication between the user and the core network services. The Major responsibilities of the ASN are †¢ The ASN must provide relinquish †¢ The Validation of AAA (authentication, authorization and accounting) server through proxy. †¢ The ANS must manage the radio resource †¢ Provide co-operations for other ASN networks. †¢ Provide a functional coordination between CSN and MS, Technologies Engaged By WiMAX Mobile WiMAX has the operating frequency band of 2 to 6 MHz. In order to perform different functions the WiMAX has to employ the following [2]. †¢ Scalable Orthogonal Frequency Division Multiple Access (SOFDMA). †¢ MIMO †¢ IP (Internet Protocol) †¢ Adaptive antenna systems (AAS) †¢ Adaptive Modulation schemes (AMS) †¢ Advanced Encryption Standard (AES) There are vast possibilities of the WiMAX to be utilized as the prior network service for the users as it is capable of providing the data services as well as voice services by the utilization of VOIP (voice over internet protocol) that enables the user to send and receives the telephony services by utilizing the WiMAX services. Difference between WiMAX and Wifi The major difference between the WiMAX and Wifi is the difference in the range. Wifi is a short range wireless network having operation in 100 meters or a bit more however, WiMAX network has the range of about several kilometers. Wifi can work in an unlicensed or open spectrum, while WiMAX has a particular licensed frequency spectrum. WiMAX is typically utilized for providing the services by utilizing the IEEE 802.16 such as data services from ISP to the end user and telephony services