Faith Cruda Student number 332289 The effects of drought on Aquatic Biodiversity Introduction: Prolonged drought is one of the biggest environmental predicaments we encounter periodically. Australia is a well known dry continent and is potentiated by low yearly rainfall. As drought progresses‚ water evaporation increases sharply which then decreases water levels on dams‚ rivers and creeks threatening the flora and fauna present in those ecosystem. “The augment in water temperature
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Current Score: 10/10 You have a minimum of 6 sources at this time. The research element is going to end soon; figure out what you have and what you still need.. 1. Do Californians deserve the drought? 1.1. what is a drought? w hat constitutes it? To what extent can we blame the drought on climate change? Is the climate change caused by Californians? Or are we receiving the blunt end of global practices (for example: china emissions being carried across pacific by trade winds producing smog in LA etc
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Workshop Safety Practices Any accident may happen in the workshop while dealing with metal‚ tools and machines mostly because of sharp metal edges and rotating parts of machines. The accident may cause a serious injury that can even be lethal. Therefore‚ to avoid the accidents‚ following are a few steps that we should follow during the work in workshop: There are rules and regulations provided to use every machine available in the workshop. We should strictly abide by them. Take help from manuals
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California drought: Why farmers are ’exporting water’ to China By Alastair Leithead BBC News‚ Los Angeles While historic winter storms have battered much of the US‚ California is suffering its worst drought on record. So why is America’s most valuable farming state using billions of gallons of water to grow hay - specifically alfalfa - which is then shipped to China? The reservoirs of California are just a fraction of capacity amid the worst drought in the state’s history. "This should be like
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Technical Advisory on Working Safely in Confined Spaces Contents Year of Issue : 2010 1. Preface 04 2. Scope 05 3. 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 Definitions Confined Space Characteristics of Confined Space Responsible Person Authorised Manager Competent Person Confined Space Safety Assessor Confined Space Attendant Entrant Confined Space Entry Permit Entry Hazardous Atmosphere 06 06 06 06 06 07 07 07 07 07 07 07 4. 4.1 4.1.1 4.1.2 4.2
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aren’t edible to humans. There are water filters that will remove most of these contaminants but‚ they are usually pricey. In the West Coast of America‚ we live next to the Pacific Ocean which contains most of the water on Earth. Why are we in a drought despite promising facts? The reason is despite an abundance of water on Earth‚ we have access to merely one per cent of all the water on the Earth’s surface. The rest of the freshwater is hidden in ice caps or somewhere deep underground. The remaining
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An essay on the drought of 1991-95 in Australia1995 was a long-lived‚ El Niño related drought. It was one of the longest of the twentieth centuryand one of the most destructive in terms ofdamage to the physical environment. Largeareas of topsoil were lost and there was somedamage to vegetation and wildlife. As droughts occur frequently in Australia‚most native plants and animals are usually wellequipped to deal with them. However‚ introducedcrops and animals can be severely affected‚leading to
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The Great Mississippi Flood of 1927 was of the most powerful natural disasters of the 1900’s in 11 states along the Mississippi River from Illinois to Louisiana. The flood lasted from the beginning of April‚ through May‚ June and July and finally ended in August. During the flood‚ the river got to be as wide as 80 miles in some places and submerged residential areas in as much as 30 feet of water. The flood affected multiple states and the country in countless ways. Some of the ways it changed the
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Methods of Estimation of flood discharge 4.1 Introduction After estimating the change in rainfall‚ as described in chapter 3‚ the next step is to convert that rainfall change into a flood flow (an amount of water flowing in a river). This chapter looks at both screening and advanced tools that can be used to help river managers estimate changes in flood flows. Historical data and ongoing data campaigns are vital components of any forecasts of flood flows. Although climate change means that future
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A flash flood is a rapid flooding of geomorphic low-lying areas - washes‚ rivers‚ dry lakes and basins. It may be caused by heavy rain associated with a storm‚ hurricane‚ or tropical storm or melt water from ice or snow flowing over ice sheets or snowfields. Flash floods can also occur after the collapse of a natural ice or debris dam‚ or a human structure such as a man-made dam‚ as occurred before the Johnstown Flood of 1889. Flash floods are distinguished from a regular flood by a timescale less
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