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Pollution

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What is Pollution?   Pollution is the introduction of contaminants into a natural enviroment that causes instability, disorder, harm or discomfortto the ecosystem, that is a physical systems or living organisms.  
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What are the types of Pollution?   Natural, Air, Man-Made, Factory, Noise, Radio-Active, Light and Thermal pollution.  
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Define Biodiversity.   The variety of life in the world or in a particular habitat or ecosystem.  
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Define Ecosystem.   A biological community of interacting organisms and their physical environment.  
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Define Biosphere.   The regions of the surface, atmosphere, and hydrosphere of the earth occupied by living organisms.  
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Define Lithosphere.   The rigid outer part of the earth, consisting of the crust and upper mantle.  
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Define Hydrosphere.   All the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds.  
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Define Atmosphere.   The envelope of gases surrounding the earth or another planet. Examples of the gases: Air, Oxygen, CO2, Nitrogen etc.  
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What are some ways to protect the environment?   Using Solar energy, recycling, using water tanks, riding bike/walking/public transport instead of using a car, hydro energy.  
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Define Volcanoes.   A mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust.  
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List the types of Volcanoes.   Shield, Composite and Cone Volcanoes.  
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Famous disasters.   Puyehue Volcano, Mt. Pompeii, Mt. Vesuvius, Victorian Bushfires, Queensland Floods, 2011 Japanese Earthquake, Krakatoa Volcano.  
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List ways of producing electricity   Fossil Fuel, Hydro Electricity and Nuclear power.  
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Fossil Fuel.   Positive: Natural resources. Negative: Air polution. Positive: Provide us with electricity. Massive amount of energy. Negative: Non – renewable. Coal, Oil, Gas.  
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Hydro Electricity.   Positive: low power cost. Negative: ecosystem damage and loss of land. Positive: reduce CO2 emissions. Nagative: methane emissions  
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Nuclear power.   Positive: Already available. Doesn’t need to be developed. Negative: Radioactive waste is produced. Positive: Emits relativly low amounts of CO2. Negative: Uranium is used and it is a scarce resource.  
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Chernobyl.   USSR → Soviet Union → Russia → Ukraine. Nuclear power plant explosion. 1986. 28 firemen. Exclusion zone. People had cancer. Wild life were affected.  
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Define Renewable.   Capable of being renewed. (of energy or its source) not permanently depleted when used.  
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Define Non- renewable.   (of a fuel or energy source) existing in finite quantity. Can not be renewed.  
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What are the common causes of Water Pollution?   Industrial waster, sewage and wastewater, marine dumping, radioactive waste, oil spills, atmospheric deposition, global warming, eutrophication, underground storage leakages, storm water run-off, agricultural run-off, leaking sewage, mining activities.  
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Define Smellbourne.   it is a name given to Melbourne about 150 years ago. Cause of water pollution and air pollution.  
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S.H.E.E.P   Social: Employment Historical: Remembrance. Environmental: Stats, lasting damage. Economics: Costs. Political:  
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Earth Hour.   Started by the WWF(World Wildlife Fund) in 2007 Sydney, 31st March, from 7:30 - 8:30. Lights turn of for an hour to engage people on the issue of climate change, to raise awareness.  
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Carbon Footprint.   The amount of carbon dioxide emitted due to the the consumption of fossil fuels by a particular person, group, etc.  
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Carbon Tax.   A price put on the amount of carbon the polluters make. Makes families pay more, consumers pay more because the producers raise the cost of daily needs and wants.  
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