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Free research essays on topics related to: carbon dioxide

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  • Carbon Dioxide - 786 words
    Carbon dioxide is a gas comprising less than 0.04 % of the atmosphere.It is used by plants to make, directly or indirectly, all of the food that we eat.Increases in the concentration of carbon dioxide generally increase the growthrate of plants and decrease their water use. The concentration of carbondioxide in the atmosphere is increasing, mostly as a result of burning of coal,oil, gas and forests. Its concentration may double by the end of the nextcentury. Carbon dioxide also significantly influences the Earth's climatedespite its small concentration, because it is a "greenhouse" gas."Greenhouse gases" are so named because they trap heat near the earth'ssurface, and prevent it from being r ...
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  • Carbon Dioxide - 368 words
    Respiratory gases-oxygen and carbon dioxide moves between air and blood in the lungs. The structure of the human lung provides immense internal surface that facilitates gas exchange between the alveoli and the blood in the pulmonary capillaries. Respiratory gases move between the environment and the respiring tissues by two principal mechanisms, convention and diffusion. Convention is responsible for movement of air from the environment into the lungs and also for the movement of the blood between the lungs and the tissue. Diffusion moves many gases across tissue barriers such as membranes. One of the gases that diffusion moves is called the Respiratory Gas. Diffusion is the process of which ...
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  • Photosynthesis - Changing Carbon Dioxide And Water To Sugars - 631 words
    6H2O + 6CO2 ----------> C6H12O6+ 6O2 Six molecules of water plus six molecules of carbon dioxide produce one molecule of sugar plus six molecules of oxygen Photosynthesis is the process that green plants and certain other organisms use to change carbon dioxide and water into glucose (sugar) using the suns energy. Photosynthesis provides the basic energy source for practically all living organisms. A very important byproduct of photosynthesis is oxygen, which we cant live without. Photosynthesis occurs in green plants, seaweeds, algae, and certain bacteria. These organisms are major sugar factories, producing millions of new glucose molecules per second. Plants use the glucose, a carbohydr ...
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  • The Greenhouse Effect - 1,061 words
    While some people believe the earth's climatic changes are due to the fact that the universe is getting older, others believe it is due to the greenhouse effect. The greenhouse effect is a naturally occuring phenomenon that is responsible for trapping heat near the earth's surface and keeping the planet warm. It is called the greenhouse effect because the way it works is similar to the way in which a green house functions. In a greenhouse sunlight passes through the transparent roof and walls and strikes the objects inside- plants, flowerpots, tables, and so forth. These objects absorb energy from sun, become warmer, and then give off energy themselves in the form of heat. Only a little of t ...
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  • Social Responsibilities Of Business - 1,680 words
    Social responsibility is the concept that business is part of the larger society in which it exists and must therefore act in a way that not only advances the firm, but also serves the society. More than ever firms are being challenged to integrate social responsibilities in to their operations. Many firms now believe that social responsibility to be a lot more than granting money to community groups or volunteering their time to organizations - although these are both important ways that firms support the community. Today, business leaders recognize that a commitment to corporate social responsibility can provide distinct advantage in attracting and retaining employees, dealing with supplie ...
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  • Asbestoswhats This Stuff - 1,330 words
    Six months ago, my husband and I purchased a small piece of property in Manhattan, Kansas to start our own computer repair business. The property was in desperate need of remodeling, but we needed to keep expenses to a minimium in order to make any profit. We had two other employees besides ourselves at this time, but as business started to pick up, we had to hire five more technicians to keep up with all the orders that were coming in. Our space was getting limited and then we were left with the decision that it was now time to get ready to remodel the building. We hired our own staff to help with the remodeling, at their request for the overtime and their experience with this type of work. ...
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  • Water - 1,126 words
    1. Introduction to open water waste disposal. 2. Introduction of oil into marine environments. 3. Introduction of plastics/pollutants into marine environments. 4. Possible solutions to waste disposal into our water systems. The oceans and the life they sustain have had enough. They can no longer endure the unwanted pollution of careless, inconsiderate people worldwide. The societies of this world need to wake up, and not only listen to, but understand that it is time to find better ways of dealing with wastes, rather than nonchalantly dumping it into our oceans. For decades people in societies worldwide have taken advantage of the Earth=s waters simply by dumping whatever they do not want in ...
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  • Save The Rainforests - 1,585 words
    The destruction of the rainforests is one of the most crucial environmental issues of our time. It is also one of the most misunderstood and neglected. There has been so much propaganda and publicity attached to this crisis that Save the Rainforests is becoming almost as clich as Save the Whales. Why dont we take this problem more seriously? Is it because we, as Americans, simply dont understand the devastating, long-terms consequences that continued deforestation of the rainforests would have? Is it because our own government is involved in the deforestation, either directly or by financing its development? Or is it because we live in a society of excessive consumption, oblivious to the pro ...
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  • Planet Earth Fate Of The Earth - 701 words
    Planet Earth: Fate of The Earth was a powerful, informative, and inspirational documentary. The narrator, Richard Kiley, progressed through many points about our precious earth including her beginnings, her slow deterioration by man as well as other factors, and theories as to her what could be her end. The beginning images of earth, approximately four million years ago, can be described a barren yet fertile land with the prospect for life to flourish. Prehistoric volcanoes exploded with gases and lava, that created the crust of our land. Eventually the gases cooled and it began to rain, eventually forming the oceans that is the birthplace of life. Biologist Prof. Deemer believes that seasho ...
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  • Ecosystem - 1,145 words
    An ecosystem is the complex of living organisms, their physical environment, and all their interrelationships in a particular unit of space. The principles underlying the study of ecosystems are based on the view that all the elements of a life-supporting environment of any size, whether natural or man-made, are parts of an integral network in which each element interacts directly or indirectly with all others and affects the function of the whole. All ecosystems are contained within the largest of them, the ecosphere, which encompasses the entire physical Earth (geosphere) and all of its biological components (biosphere). An ecosystem can be categorized into its abiotic constituents, includ ...
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  • The Environment - 384 words
    Our environment is a topic that receives a great deal of attention. The environment has been the basis of numerous television and radio commentaries as well as a multitude of newspaper and magazine articles. The environment is even the foundation for many political debates addressing issues and the concerns about what is happening and what will happen to the environment over the next several years. A look at the past I s helpful in understanding the present concern. Comparatively speaking, little emphasis was placed on ecology (the study of the relationship of plants and animals to their environment) prior to 1955 Air pollution, toxic waste, marine pollution, pesticides, oil spills, acid rai ...
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  • Stuff - 449 words
    The problem of global warming, an increase in the average temperature on Earth, is getting worse. The Earth has warmed 0.3 to 0.6 degrees Celsius since the late 1800s. Scientists believe that the cause is the greenhouse effect, the process of trapping heat in the Earth's atmosphere because of the presence of large amounts of carbon dioxide, chlorofluorocarbons, methane, and nitrogen oxides. Less oxygen is being produced and cleaning the atmosphere allowing more of these gases to do its work on the environment. Automobiles exhausts are just one of the contributors to this problem. The burning of fossil fuels is another major influence to the increase in global temperature as well. The destruc ...
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  • Ecotourism In Latin America - 1,116 words
    ... , restaurants, and other services which entail physical changes in the destination, including expansion of the built environment. Like expanding businesses into and area and disrupting the environment, tourism does just the same. In addition, they both consume resources. However, the government takes little authority to help preserve the environment. In actuality, tourism destroys tourism. (Secretariat 67). Regions that are equipped with a top of the line environment are faced with two main problems. The region has to face whether or not to promote economic activity, and if it does, accept some sort of environmental decay. Moreover, they have to decide whether or not to give preference t ...
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  • Environmental Hazards - 1,289 words
    Every thing present in this universe is a part of environment including ourselves. Whether they are animals , living thing, or nonliving things. All of the external factors affecting an organism. These factors may be other living organisms (biotic factors) or nonliving variables (abiotic factors), such as water, soil, climate, light, and oxygen. All interacting biotic and abiotic factors together make up an ecosystem. Organisms and their environment constantly interact, and both are changed by this interaction. Additionally, environmental factors, singly or in combination, ultimately limit the size that any population may attain. This limit, a population's carrying capacity, is usually reach ...
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  • Environmental Hazards - 1,241 words
    ... gy exists for point sources of pollution to be monitored and regulated, although political factors may complicate matters. Nonpoint sources-runoff water containing pesticides and fertilizers from acres of agricultural land, for example-are much more difficult to control. Pollution arising from nonpoint sources accounts for a majority of the contaminants in streams and lakes. With almost 80 percent of the planet covered by oceans, people have long acted as if those bodies of water could serve as a limitless dumping ground for wastes. Raw sewage, garbage, and oil spills have begun to overwhelm the diluting capabilities of the oceans, and most coastal waters are now polluted. The pollution ...
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  • None Provided - 566 words
    Many differing opinions exist on what needs to be done about our current status of conserving energy and conserving our environment. With increased gas prices and energy costs, consumers are more aware of what benefits are available and the methods of obtaining them. The introduction of hydropower has been a major step for some, while a stumbling back for others. Advocates for hydropower have provided much information about the many benefits that we reap from using hydroelectric dams. Environmental activists denounce the many negatives that are created by the numerous dams located throughout the United States as well as other countries. Both sides present valid arguments and need to be addre ...
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  • Global Warming - 681 words
    The consequences of global warming have by now come to the attention of the majority of the population of the United States of America. The gradual warming of the earths atmosphere is due to an increased amount of carbon dioxide released into it. The burning of fossil fuels, oil, coal, and natural gas are the main activities that release carbon dioxide into the atmosphere. Americans add carbon dioxide to the atmosphere every time they drive their car, use a chainsaw, or use electricity produced at a fossil fuel power plant. The increased temperature due to the effects of global warming can be disastrous. Low lying areas and islands are in danger of being overcome by increased water levels in ...
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  • An Pollutants - 524 words
    Pollution in our oceans is a serious problem. According to Marie Wild in her article "Ocean Pollution", "Ocean pollution is one of the major killers of our sea animals.". Most of the waste that is dumped is plastic, which takes hundreds of years to break down (Oceanic Research Foundation [ORF]). Everyday millions of animals are caught in fishing nets and six pack beer rings. It is thought that only fish are affected from getting caught in these. In reality they also kill birds, turtles, dolphins and seals. The animals are slowly strangled or suffocated by the rings as well as cans, fishing line, nets, kite strings and ropes (Wild). Or, as stated be the National Wildlife Federation (NWF), the ...
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  • Volcanoes - 1,488 words
    Which are the biggest (tallest and largest volume) and smallest volcanoes on Earth? The island of Hawaii is probably the largest volcano on earth. From its base (on the floor of the Pacific Ocean) to the summit of Mauna Kea (about 13 000ft) is some 30 000ft i.e. higher than Everest. The island comprises several coalescing volcanoes including Mauna Loa, Mauna Kea and Kilauea. Mauna Loa alone has an estimated volume of 40 000km**3. It is impossible to say which is the smallest volcano since there are thousands of small eruptions on the ocean floor and around already established volcanoes only a few yards across. Volcanoes are caused when molten rock from within the mantle breaks through the cr ...
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  • Volcanoes - 1,427 words
    ... locked into the melted minerals. If volcanic rocks erupt on the earth's crust, such as the Andean volcanoes, then magma can interact with carbonate rocks such as chalk as it travels up through the mantle or lower crust, picking up carbon dioxide on the way. In subduction zones, where the ocean floor goes down into the mantle some carbonate rocks do get taken down and melted, recycling their carbon dioxide content, but this is a minor source compared with the mantle. Carbon is quite common deep in the earth, found either as the element itself (graphite or diamond under very high pressures), or as carbon dioxide. None of the common minerals in magmatic rock contains carbon, so when magma ...
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