Petroleum is an oily‚ thick flammable liquid‚ a mixture of various solid‚ liquid and gaseous hydrocarbons. Hydrocarbons are molecules that comprise of Hydrogen and Carbon. Petroleum is the general term for "unprocessed" crude oil. It is present beneath the Earth’s surface (Lithosphere) and forms when trapped‚ decomposed dead organisms buried in the sedimentary rock‚ and are heated under the immense pressure of new sedimentary layers over time (fossil fuel). The heat and pressure distilled the organic
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Hydrosphere – Water & Wetlands Introduction Planet earth- rightly termed as blue planet because of enormous quantity of water enveloping the earth‚ is unique in harbouring life on earth as we know today. The term hydrosphere represents this part of the earth. For millions of years‚ the intricate balance between hydrosphere and atmosphere has resulted in the observed global pattern of seasons‚ cycle of snow and rainfall‚ summers and winters‚ droughts and floods. This has consequences
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the densest (iron) makes up most of what is found deep in the core. Earth’s major interacting systems are the climate system‚ the plate tectonic system‚ and the geodynamic system. The climate system involves interactions among the atmosphere‚ hydrosphere‚ and biosphere. The plate
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Environment and its Problems Introduction Environment is defined as the surroundings in which the organism lives. The environment may be the physical environment‚ the chemical environment or the biological environment. Thus‚ the environment has two components - abiotic and biotic. Classification of Natural Resources The things that man derives from the environment are called natural resources. Natural resources are thus stores of supplies that are needed by man. The resources include
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The Biogeochemical cycles of Earth Earth with its many species and abundant live is a Biosphere in flux. As time passes with the seasons‚ the earth turning upon it’s axis and the movement of the sun’s rays North to South‚ makes it a place of movement and cycles. There are four cycles that are considered the four major biogeochemical cycles. The hydrologic‚ this is the transport of water around the globe. The nitrogen cycle‚ this is the movement of nitrogen within the biosphere. The carbon
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volcanoes‚ plant/animal respiration‚ plant decay‚ burning of fossil fuels‚ deforestation - Sinks: Plant photosynthesis‚ oceans‚ carbonates Hydrologic Cycle: The continuous exchange of water amongst reservoirs - "Reservoirs" constitute the hydrosphere - Reservoirs: oceans‚ lakes‚ rivers‚ glaciers‚ the atmosphere‚ living tissue - Hydrologic cycle is power by energy from the sun - causes: evaporation‚ transpiration‚ precipitation‚ run-off to the sea - Begins with evaporation of water from earth’s
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Throughout the ages‚ the world has changed. Ice ages have come and gone‚ sea levels have risen and fell‚ and leg warmers have appeared and disappeared. Nothing has changed our world as drastically as the rise of the superior race‚ humans. From the start of our history‚ we have changed the world from the invention of the wheel to the invention of electricity‚ to a society perpetually stuck with their noses in their phones. None of these inventions have altered the world more than pollution. Pollution
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movement of oxygen within its three main reservoirs: the atmosphere (air)‚ the total content of biological matter within the biosphere (the global sum of all ecosystems)‚ and the lithosphere (Earth ’s crust). Failures in the oxygen cycle within the hydrosphere (the combined mass of water found on‚ under‚ and over the surface of a planet) can result in the development of hypoxic zones. The main driving factor of the oxygen cycle is photosynthesis‚ which is responsible for the modern Earth ’s atmosphere
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from industrial‚ rural and domestic areas. Australians are one of the most wasteful people in the world. Waste management includes the collection‚ transport‚ processing of materials‚ which can be solid or liquid’s. b) Waste creation in the Hydrosphere Water pollution occurs when a body of water is poorly affected due to the addition of large amounts of materials to water. The sources of water pollution are considered as being a point source or a non-source point of pollution. Point sources of
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the drill changes its magnetic field. Where it was positive before‚ it will now be a negative. Likewise‚ when the drill is switched back to positive‚ it will go from positive to negative. 8.9 Name the 2 other spheres. The two other spheres are hydrosphere and atmosphere. 8.11 As Columbus’s fleet sailed westward the discrepancy between magnetic north and celestial north changed. Did it increase of decrease? The discrepancy between magnetic north and celestial north increased enough that Columbus’s
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