The underwater environment consists of both biotic and abiotic sounds that closely related to reproduction and survival of marine organisms (Slabbekoorn et al., 2010).Biotic sounds are produced by living, non-human sources such marine mammals, fish and invertebrates, as for odontocetes (toothed whaled, dolphins and porpoises) where the sound generated by high-pressure air being blown over a bone structure called as...
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Intro Environmental change and management uses the concepts of environment, change, interconnection and sustainability to investigate the nature and extent of human-induced environmental changes that challenge sustainability While it is true that there are a lot of factors that influence the change in our environment such as pollution, degradation, erosion, alien introduction and climate change. The main one is human...
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We live on a blue planet, with oceans and seas covering more than 70 per cent of the Earth’s surface. Oceans feed us, regulate our climate, and generate most of the oxygen we breathe. We can make a long list of how the oceans and marine life are important to us. Oceans cover more than 70 per cent of the...
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Indian ocean has gained the world’s attention due to its strategic importance in terms of economic and geo-politic. It is the the third-largest of the world’s ocean. It is sirrounded by three lands on it sides, in the west by the eastern and soithern parts of Afroca and the south-western part of Asia, in the north by southern Asia and...
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Since the surface of the Earth is far from being even, the distribution of oceans is not quite equal between the two hemispheres. Taking a closer look at the map, one will see that the Southern Hemisphere (206 x 106 km2) has more water resources than the North one (154 x 106 km2) (Distribution of Water and Land Between Parallels...
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Ocean mapping consists of different techniques and resolutions of quality all of which have benefits. 100% of the ocean seafloor has been mapped with a horizonal resolution of 1 to 12 kilometres by the Geosat and ERS-1 spacecraft (Smith and Sandwell 1997). However less than 10% of the global ocean has been mapped by sonar technology (NOAA 2018). Although the...
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What is ocean warming? Ocean warming is induced by rising levels of greenhouse gases preventing heat radiated from the Earth's surface from escaping as freely as it once did. The majority of the excess heat in the atmosphere is returned to the ocean. Since the 1970s, the oceans have absorbed over 93 per cent of the excess heat dispersed from...
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Nonpoint-source pollution is the cumulative result of our everyday personal actions and our local land use policies. Here’s a brief rundown on the major types of pollutants carried by runoff. Pathogens Pathogens are disease causing microorganisms, such as bacteria and viruses that come from the fecal waste of animals and humans. Pathogens wash off the land from wild animal, farm...
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Baikal is a miracle of nature. And now I’ll tell you why. Each person is endowed with the ability to admire nature. Perhaps there are few things in our everyday life that could instantly transform our way of thinking or the current mood. Only nature can do it. Even without realizing the impact that nature has on us, we instinctively...
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The lake was glimmering in the callow light of dawn. Local legend had it that a giant hand had scooped out a gash of rock aeons ago. Then a great heap of argent-silver was moulded and poured into it, hemmed in by precipitous hills. A broad span of Tuscany-blue sky was slashed above it, making it appear like nature’s amphitheatre....
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The movie entitled wall E is talked about the robot in earth, his name is wall E he was the last and only robot that has been stayed on earth. He has to collect the last different garbage everyday, Collecting garbage is his Duty in his Everyday life, as he collected the garbage he press them in a shape of...
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Ever since the mid-1980’s, wildfires have been becoming an ever-increasing threat. Many have linked the increase to climate change and warming temperatures. For example, in late summer-fall of 2018, the Mendocino Complex Fire, which was actually two very close fires, broke numerous records in California. One of the fires, the Ranch Fire, burned a record 410,203 acres. A study by...
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Killing whales for food has been happening for millennia. But it was commercial whaling – turning whales into barrels of oil for profit – that led to the wholesale destruction of most of the world’s populations of big whales. The loss of whales from our oceans is the same story as overfishing of big fish – sharks, tuna, cod and...
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Imagine a world where you can’t afford electricity for your home. Gas for a car is $15 a gallon and only rich people and upper-middle-class can maintain a vehicle. Imagine a planet that isn’t green anymore. It is truly terrifying to think about the earth dying, and we are the only ones who can preserve the Earth’s magnificent beauty. Think...
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Every year we emit 6511 metric tonnes of carbon into Earth's atmosphere. This would make the temperature of our cherished planet to increase significantly. If the global temperature rises by two degrees, mountain glaciers and mountain regions will start to see more landslides as the permafrost that held them together melts. This will also cause floods, droughts, bushfires and cyclones...
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Imagine having a pile of plastic bottles in your backyard. Disgusting right? That’s exactly what we’re doing though, we don’t have piles of it in our backyards yet, no but we are polluting the habitats of animals and soon if plastic bottles aren't banned, it won't be very long till we see those bottles everywhere including our homes. I agree,...
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Many individuals remain obsessed with anime. To some people who are not privy to the industry, anime often appears as Japanese cartoons catered for children. While there are certain shows and movies whose target audience are children, many otakus tend to like anime so much for a number of reasons. Contrary to misconceptions, animation is designed for people of all...
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First and foremost, the sun, moon, earth, and gravity all play crucial roles in our solar system. Second, the Sun is the primary star of the Solar System. Next, the Moon is the only true celestial satellite of Earth. Then, the Earth is the third planet from the Sun and the only known astronomical entity capable of supporting life. Lastly,...
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A biome is a community of flora and fauna that have common characteristics for the environment they exist in. Biomes are very large ecological areas on the Earth's surface and are often defined by abiotic factors such as climate, temperature, relief, geology, soils and vegetation. Biomes have a crucial role in sustaining life on Earth. Grasslands are large terrains consisting...
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Introduction Senecio madagascariensis Poiret (fireweed) is an short-lived or daisy-like annual herb with abundant branched stem that grows from 10 to 70 cm in height. Fireweed is native to Madagascar and Southern Africa and it was first introduced in the Hunter Valley in Australia by 1918 (Department of Agriculture and Fisheries QLD, 2017) and large spread and infest in Hawaii(USA),...
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World's largest rain forest, Amazon has been burning for over 16 days now and holds the risk of burning out completely. Contributing almost 20 percent of the earth’s oxygen, the rainforest is in a major loss of trees and biodiversity. It will get completely burned out if it is not put out soon. The impact of the fire can already...
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There was a time where forests covered the earth, however as the human population grew and industrialized, the area forests covered decreased severely. The depletion of forests and trees is called deforestation. Deforestation is the cutting down or clearing of forests. It’s the action a human takes to remove forests from the planet, by their own hand. Deforestation occurs when...
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The ozone hole, is technically not a ‘hole’, meaning that there is no ozone present. This hole is actually a region of great depletion of ozone present in the stratosphere. The ozone hole above the Antarctic over the south pole, and appears every spring since the 1980’s. There has also been a depletion of ozone in the stratosphere in both...
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There's a reason nutritionists recommend drinking at least 8 glasses of water per day while limiting soda — or better yet, avoiding it altogether. Water is calorie-free, hydrating and the benefits are many. Soda is loaded with sugar and calories but does nothing for your health. While the sweetness of the carbonated beverage may be enticing, ditch the soda pop...
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It is true that water is considered as a natural resource that has been gifted for the whole human being. Therefore , it is argued that authorities should prohibit the selling of processed water in bottle. In my opinion, I totally disagree with the aforementioned assertion for relevant reasons. There are several reasons why it's very crucial to maintain the...
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Warren in 1971 concisely defined water pollution as 'any impairment of the suitability of water for any of its beneficial uses, actual or potential, by mancaused changes in the quality of water'. Nairobi River flowing through Kenya's capital city provides an excellent example of a heavily polluted river. River pollution problems are common in developed countries with highly industrialised societies....
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“Water is essential for life and for all human activities but also for preserving the environment and its resources” (Benedini & Tsakiris, 2013). In many countries around the world water scarcity is a growing issue, with factors such as urbanisation, population increase, intensification of agriculture, and climate change putting increasing stress upon existing supply’s of fresh water. For much of...
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What are some Urban issues human experience? One of the urban issue that human observes in their area today is environmental pollution. Environmental pollution could be defined as a situation whereby pollutants contaminate the environment they live in. Air pollution, water pollution, and soil pollution have negative effects and a way of contributing to human’s unhealthy lifestyle. Soil pollution also...
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Canada is the second well-known country for its best quality of water among other countries where it has about 20 percent of the world’s freshwater.1 From the quality of safe drinking water, it made the list under one of the public health achievements. Canada’s public health policies helped to protect the community’s health by reducing contamination in water. However, the...
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In 1994, the most controversial alliance between nations took its affect. NAFTA (North American Free Trade Agreement) was the agreement to have free trade between Canada, United States and Mexico. It was suppose to drastically increase trade and create jobs but in many ways had a reverse affect. The environment took a backseat to the money. With all the increase...
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