A. Swimming. 1. In general‚ beluga whales are slow swimmers. They commonly swim about 3 to 9 kph (1.9-5.6 mph). They are‚ however‚ capable of sustaining a maximum speed of 22 kph (13.6 mph) for as long as 15 minutes (Nowak‚ 1991; Ridgway and Harrison‚ 1981). 2. Belugas can swim forward and backward (Nowak‚ 1991). 3. Beluga whales often swim at depths barely covering their bodies (Ridgway and Harrison‚ 1981). B. Diving. 1. Beluga whales typically don’t dive very deep‚ usually to
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Due to the oceans being so vast‚ they “absorb an estimated 22 million tons of carbon dioxide from the atmosphere every day” (Kirshenbaum). The carbon dioxide absorbed is changing the chemistry of the seawater‚ and this process is called ocean acidification. Ocean water is not being turned into acid‚ but the pH of the water is turning more acidic. When carbon mixes with the saltwater‚ it creates a compound called carbonic acid. From there it immediately
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A Study of the Badu Mangrove Community at Sydney Olympic Park Abstract A investigation took place at a large mangrove community called the ’Badu Mangroves’. The interactions of organisms and the Badu Mangrove ecosystem were observed. While experiments were carried out to determine the abiotic ( e.g. temperature‚ humidity‚ soil pH ) and biotic ( e.g. number of seedlings distributed throughout a certain area‚ adaptations of animals ) features in the Badu Mangrove community. Aim The aim of this
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“Competitive markets‚ free from government intervention‚ are the best means of allocating a society’s scarce resources amongst its members.” The dilemma of how best to allocate a society’s scarce resources amongst its population has been avidly debated by economists and policy makers over time. It can be
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toughest out there‚ and are found thriving in deep-sea thermal vents and sub-glacial lakes. A few of the outlandish environmental niches extremophiles have adapted to are high/low temperatures‚ pH extremes‚ the absence and excess of oxygen‚ and high salinity. While all these environments seem very extreme to humans‚ several extremophiles have invaded other organisms themselves‚ giving a whole new meaning to the word “extreme”. The species of interest‚ Rhizobium leguminosarum‚ falls under the broad
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Nashia Horne Professor S. Tanner Smith Speech Communications‚ SPCH ORBC-MW06 22 March 2010 Hyperbaric Chambers and Oxygen Therapy: Life Saver Specific Purpose: To inform audience of hyperbaric chambers and the oxygen therapy that they provide. Central Idea: The description of a hyperbaric chamber‚ the oxygen therapy process‚ the illnesses it treats and the side effects. Introduction I. Oxygen‚ one of the most important elements
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CASE STUDY: STEAM PRODUCT SOLUTIONS Manjung Unit 4 - Malaysia Ultra-supercritical Coal-fired power plant South East Asia‘s first 1‚000 MW ultra-supercritical coal-fired power plant TNB Janamanjung Sdn Bhd‚ a subsidiary of Malaysia’s state-controlled power generation‚ transmission and distribution company Tenaga Nasional Bhd (TNB) has awarded the turnkey engineering‚ procurement and construction (EPC) contract for the Manjung 4 1‚000 MW ultra-supercritical coal-fired steam power plant to Alstom
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The Titanic Table of Contents Disaster‚ Death‚ and Frozen Toes Lifeboats Did the Constructors ever go over budget because of all the luxury? Was the structure of the Titanic built poorly? What is the true reason the ship sank? Why didn’t any of the neighboring ships receive the ships calls? The Titanic’s Path Conclusion Disaster‚ Death‚ and Frozen Toes On April 14‚ after four days of uneventful sailing‚ Titanic received reports of ice from other ships‚ but she was sailing on calm
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on. Some ecological factors like edaphic (those relating to soil – like pH of soil‚ water content‚ drainage and porosity) and topographic ( shape of the land‚ whether it is mountainous or flat) only relate to terrestrial environments. Other like salinity ( freshness or saltiness of the water) and tidal action ( ebb and flow if the tides)only apply to aquatic habitats. ECOLOGICAL FACTORS COMMON TO ALL HABITATS Factors like temperature‚ rainfall‚ light‚ hydrogen ion concentration (pH)‚ wind and pressure
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Geography H/W – The Disappearing Aral Sea This essay intends to first introduce the disappearing Aral Sea‚ which due to the extensive agricultural activities devised by the Soviet government in the region‚ the former fourth-largest lake of the world is now the world’s eighth largest lake. This has resulted in perhaps the world’s most prominent man-made ecological disaster‚ giving its location and background knowledge with a map‚ and then describe its future in terms of how it is going to be utilized
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