How Much Oxygen Does One Tree Produce

Youve probably heard that trees produce oxygen, but have you ever wondered just how much oxygen one tree makes? The amount of oxygen produced by a tree depends on several factors, including its species, age, health, and surroundings. A tree produces a different amount of oxygen in summer compared to winter. So, there is no definitive value. Here are some typical calculations: A mature leafy tree produces as much oxygen in a season as 10 people inhale in a year. A single mature tree can absorb carbon dioxide at a rate of 48 pounds per year and release enough oxygen back into the atmosphere to support two human beings.​ One acre of trees annually consumes the amount of carbon dioxide equivalent to that produced by driving an average car for 26,000 miles. That same acre of trees also produces enough oxygen for 18 people to breathe for a year.​ A 100-foot tree, 18 inches diameter at its base, produces 6,000 pounds of oxygen. On average, one tree produces nearly 260 pounds of oxygen each year. Two mature trees can provide enough oxygen for a family of four. Mean net annual oxygen production (after accounting for decomposition) per hectare of trees (100% tree canopy) offsets oxygen consumption of 19 people per year (8 people per acre of tree cover), but ranges from nine people per hectare of canopy cover (4 people/ac cover) in Minneapolis, Minnesota, to 28 people/ha cover (12 people/ac cover) in Calgary, Alberta. Notes About Numbers Note there are three ways to look at the amount of oxygen produced: One type of calculation simply looks at the average amount of oxygen produced via photosynthesis.A second calculation looks at net oxygen production, which is the amount made during photosynthesis minus the amount the tree uses.A third calculation compares the net oxygen production in terms of gas available for humans to breathe. Its also important to remember that trees not only release oxygen but also consume carbon dioxide. However, trees perform photosynthesis during daylight hours. At night, they use oxygen and release carbon dioxide. Sources McAliney, Mike. Arguments for Land Conservation: Documentation and Information Sources for Land Resources Protection, Trust for Public Land, Sacramento, CA, December  1993.Nowak, David J.; Hoehn, Robert; Crane, Daniel E. Oxygen Production by Urban Trees in the United States. Arboriculture Urban Forestry 2007. 33(3):220–226.Stancil, Joanna Mounce. The Power of One Tree - The Very Air We Breathe. U.S. Department of Agriculture. March 17, 2015.Villazon, Luis. How many trees does it take to produce oxygen for one person? BBC Science Focus Magazine.

Archaeology Has Proved the Historicity of the Trojan...

Archaeology has proved the historicity of the Trojan War. Discuss Â… he [Heinrich Schliemann] found layers of ruins Â… and two bore unmistakable signs of violent destruction. One of these layers, the seventh according to more recent excavators, was no doubt the city of Priam and Hector. The historicity of the Homeric tale had been demonstrated archaeologically. - M.I. Finley, the World of Odysseus Introduction The Trojan War and its characters are detailed in the writings of Homer, Vergil, Dante and many others. It is a fantastical tale of a decade-long siege of a powerful city by a massive pan-hellenic force. However, even though it has proved to be such a rich source of inspiration for writers, poets and artists throughout†¦show more content†¦These incidents of divine intervention were added in order to add further drama and emphasise the scale of the struggle for victory. I personally think that Heroditus version of the Trojan War is the closest to the truth. When he was writing his Histories he had access to sources we did not, like the priests he mentioned in the above quotation. His version of events, though it may not be completely accurate, is highly feasible and fits with our existing knowledge of the Mycenaean period. Archaeological evidence If Homers writings are central to our understanding of the Trojan War, so are Heinrich Schliemanns digs. His name is synonymous with Troy. Fascinated with Homer, he made it his mission to discover Troy, and eventually did. However, his problems with convincing his fellow academics and archaeologists that he had indeed Troy is similar to the problem we have with defining what the Trojan War actually is. Homers Trojan War could not have possibly happened as it is laid out in the Iliad and the Odyssey. There are jarring incongruities between what happens in his epics, and what happened in that period of Greek history. In like manner, if Apollo vouchsafe me glory and I slay your champion, I will strip him of his armour and take it to the city of Ilius, where I will hang it in the temple of Apollo, but I will give up his body, that the Achaeans may bury him at their ships, and the build him a mound by the wide waters of

Social Policy in New Zealand

Question: Discuss about the disability issuesin New Zealand. Answer: Introduction: The issue related to the disability is very prominent in New Zealand for the past few decades. The person with the disable features tends to be treated on the individual level and the appropriate cure is required to be taken simultaneously. The government also tries to support the disable people and provide varied types of assistance to them, so that they can survive easily. In fact, the government also defines the suitable plans to solve the appropriate issues. The issues like equity in service provision, caregiver issues, international policy related and employment issues are planned by the government of New Zealand in an appropriate manner. The main purpose of the essay is to identify the major issues related to the disability in the New Zealand. As the issues related to the disability are considered as the long lasting issues and its not only affecting the social aspects, but affecting the economic aspects as well, so it becomes essential to find out the appropriate solution for this. Other than this, to clarify the topic more in detail, the state, voluntary, market identification, significant changes and reforms are also being defined thoroughly.(Office of Disability issues, 2014) Identification of the Issue: For most of the 20th century, the person with single disability and multiple disabilities are considered as the inherent problem of an individual. There are various evidences and some of the examples are also being defined for the issue of the disability. In various academic literature and the research papers, the examples are also defined which is helpful in solving the suitable issues. There are two models also defining for the issues. In the previous times, the Medical Model is defined according to which the disability issues are curable. But to overcome this, the social model was introduced which implies the aspects in the social context and institutional practices. (tatou, 2014). This model would be helpful in improving the major aspects related to the disability issues. There are various major issues which are defined on the disability. Firstly, the social model believes in the process of capacity building, the issues is that the government needs to be prepared themselves for more ideas with the agenda to solve the issues related to the capacity building. Secondly, the issues are generated when the same employment opportunities are being provided to the disable people and the non disable or normal people depend on their deservance. Similarly, the third issue is related to the providing the personal assistance to the disable people and their families rather than the normal people. All these individual issues are related to the disability issues, which are being observed in the New Zealand. To solve these aspects, there are various methods and the plans which are introduced and helpful in making the process easier. State, Voluntary and market identification: The state of disability issue in the initial days were very miserable. The ministry of the social policy in the New Zealand proclaims that approximately 11% of the people show their dependency on the wider level. With the changing society trend, the state of the disability aspect requires to get changed under various reforms and the changes which is under developmental aspects can be improved on the wider level(United Nation Human Rights, 2014). The ministry of social development is still focusing on the major aspects related to the process and trying to avoid the negative situations as soon as possible. The Voluntary sector is the aspect in which the suitable policies and the solutions are being provided by the different sectors, which are offering the suitable solutions to the disability issues. The revenue department of the New Zealand Voluntarily comes forward for the moral initiative to promote this. Through that regime, they provide the exemption from the tax to the disable people. By this, the employment aspects are getting stronger and appropriate. Similarly, the social development department provides the disability allowances and the financial assistance to the people who are facing the issues relate to the disability. This is considered under the category of the voluntary activities and by this, the suitable assistance is also being provided to the disable people. The department of the Labor situated in the New Zealand also propounded its voluntary activities by providing the appropriate assistance in the policies and the rules related to the services. In contrast to the di sability issues, the market identification is also considered as important, because the appropriate market will be helpful to provide the suitable assistance and support for the disable people (American Psychological association). All the important markets, which are helpful in promoting the aspects related to the disability issues can be considered on the wider level. By selecting all these aspects as per the requirement, the disability issues can be solved to the larger extend. Significant changes and Reforms: As it is defined in the paragraphs above that there are various disability issues introduced in the New Zealand. To avoid the changes, there are various policies, committees and the process are defined on the wide level. These policies are helpful in bringing the significant changes and the reforms in the process of the disability. The major reforms and the changes through policies are defined below with their well defined objectives. The introduction of the social model is considered as the most important change which is identified in the disability issues. The social model possesses two basic approaches which are related to the right based approach and the community based approach. Both of these approaches are helpful in solving the issues related to the disability in the New Zealand. The right based approach mainly believes in the process of the capacity building, in which the policy planning, evaluation and the research aspects are considered as important. While in contrast to the community based approach, the Society and its appropriate values are helpful in enhancing the suitable qualities. In fact, there are various aspects related to the capacity building which are helpful in enhancing the skills related to the disability issues. Some of the common skills are providing the best education facility for the disabled people, employment opportunity provided to the people, providing the foster leadership to the disable people and many other different types of facilities (Stace, 2015). The social model is considered as the key model which is helpful in bringing the major changes in the life of the disable people. Other than this, there is another policy introduced which relates to the Disability Support Advisory Committee (DSAC). This particular committee also helps in introducing the suitable changes in the society and the life of the common people. The major objectives related to the DSAC are the attitudinal changes which provide the social assistance to the people, appropriate policy and the planning which are helpful in changing the aspects related to the policy development, strong and effective communication which assists in coordinating with the people easily and working on the inter sectoral basis, so that the barriers related to the participation of he disable people can be removed easily. The other significant change or reform related to the disability issue in New Zealand, is aimed to sort out by propagating the suitable model known as the New Model for he DSS, which was introduced in May 2010. This new model would be helpful in identifying the current challenges and also targeted to remove in a well defined manner. The cross government issues, the issues related to the disabled people, chronic diseases and many other aspects can only be solved by implementing the appropriate solution in the positive direction. The changes or reforms which can be introduced to make the changes are providing early intervention and the rehabilitation, enabling the mobility and access community around, improvement in the supports to make live possible and many other aspects are helpful in improving the standard of living of the disable people. There are various other factors which are helpful in improving the process. To change the aspect of the disability, the appropriate steps should also be taken. Conclusion: By assuming the various aspects and the observations above, it is quite clear that the disability issues is the considered as the most prominent area to be focused. The factors and the causes which are responsible or the disability issues should find out about the rapid level and should be tried to remove as soon as possible. The government of the New Zealand is continuously looking forward for the new plans and opportunity to the disable people. But, as the area of disability is considered as the most miserable area, so more improved plans should be prepared to solve the issues in an easy way. It is recommended that the identification of the suitable policies should be done on an appropriate level. The human rights commission of the New Zealand is also trying hard to achieve the appropriate targets. These targets are mainly working in favor of the disable people. Also, the role of the government bodies is also considered on the very wide level. Without the government help, the futur e aspects relate to the disability issues cannot be fulfilled. References American Psychological association. (n.d.). Disability Issues Office. Office of Disability issues. (2014, May). Disability in New Zealand: A changing perspective. Stace, H. (2015, February 15). Disability Policy in New Zealand. tatou, K. (2014). Information and Guide for Implementation of the New Zealand. United Nation Human Rights. (2014). Issues related to disability policy.