atmosphere of Earth is a layer of gases surrounding the planet Earth that is retained by Earth’s gravity. The atmosphere protects life on Earth by absorbing ultraviolet solar radiation. A. Nitrogen - 78% - Dilutes oxygen and prevents rapid burning at the earth’s surface. Living things need it to make proteins. Nitrogen cannot be used directly from the air. The Nitrogen Cycle is nature’s way of supplying the needed nitrogen for living things. B. Oxygen - 21% - Used by all living things. Essential
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examines the effects that humans have been inducing on the ocean and how the pollution produced is affecting the form of life present there. There is plenty of evidence that the oceans have deteriorated at the hands of humans‚ but recent investigations show that deterioration‚ especially at the sea coasts‚ has increased significantly in the last years due to increased industrial discharge. Common synthetic pollutants that reach the ocean include pesticides‚ herbicides‚ chemical fertilizers‚ detergents
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„Types of atmosphere in O. Henry’s short stories” Written by Student of Group 403 Specailty – English/Italian Druță Margarita Verified by: English Lecturer Plescenco Galina Chisinau 2014 The topic of this research goes around a very interesting and useful topic: “the atmosphere”. I chose this topic because the atmosphere is one of those leading factors which form the reader a certain impression upon the text. It is not only a word or some words which characterize the atmosphere; it is
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“The acidification of the ocean today is bigger and faster than anything geologists can find in the fossil record over the past 65 million years” (Carl Zimmer). This is just an illustration regarding the tales of environmental degradation from carbon dioxide pollution in the ocean. The phenomenon of ocean acidification is imperative to understand; the reduction of essential pH levels over a protracted period of time is extremely harmful. In other words‚ ocean acidification can be measured by pH units
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The Concentration of CO2 in the Atmosphere Introduction Carbon dioxide (CO2) is a colorless‚ odorless‚ non-flammable gas that can be produced by cellular respiration and burning of fossil fuels. Many types of industries such as breweries‚ mining ore and the manufacturing of carbonated drinks‚ drugs‚ disinfectants‚ pottery‚ and baking powder; utilize the CO2 gas (Appendix C). Recently Scientist proposed a theory in which CO2 concentration levels above 450ppm will lead to dramatic and potentially
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An Ocean Habitat or sometimes refer to as a marine environment is a place in the ocean where plants and animals interact with the chemical and physical features of the environment. An Ocean habitat is a place where communities of organisms live. The three main ocean habitats of the ocean are the open water‚ the soft sandy to muddy bottom and the hard shore. Examples of ocean habitats are the coral reefs‚ the estuaries and the abyssal zone. Habitats can be classified in a number of ways in order
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Ocean Pollution “Over 80% of marine pollution comes from land-based activities” (WWF‚ May 4‚ 2006‚ p.1). The rest comes from ocean-based activities. Different types of pollution enter the ocean each year. The major pollutants are oil‚ toxic materials‚ and debris. These materials not only pollute the ocean‚ but they also affect the marine life. Before the 1970s there were no laws to prevent and stop people from dumping pollutants into the ocean. Since the early 1970s many laws and regulations
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The purpose of this essay is to consider the current environmental issues of an enhanced greenhouse effect and global warming with particular reference to the changes that are taking place in response to Greenhouse Gases interacting with the atmosphere and the effects these changes are having on naturally occurring reactions and processes that impact on our planet and our way of life. The aim of the essay is to examine the evidence available to support and refute current claims of imminent threats
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The Atmosphere and Environment Photochemical Smog and Prevention Class 3/1 Group Members: Shushanik (11)‚ Jun Bin (12)‚ Bob (13) and Chin Kiat (26) What is photochemical smog? What are the pollutants involved? Research Explanation using concepts learnt (chemical bonding‚ acid & bases‚ particulate model of nature) it’s “haze in the atmosphere accompanied by high levels of ozone and nitrogen oxides‚ caused by the action of sunlight on pollutants.” photochemical smog
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CHAPTER 31 OCEAN CURRENTS TYPES AND CAUSES OF CURRENTS 3100. Definitions The movement of ocean water is one of the two principal sources of discrepancy between dead reckoned and actual positions of vessels. Water in motion is called a current; the direction toward which it moves is called set‚ and its speed is called drift. Modern shipping speeds have lessened the impact of currents on a typical voyage‚ and since electronic navigation allows continuous adjustment of course‚ there is less need to
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