dioxide from burning fossil fuels leading to acid rain‚ carbon dioxide from burning of fossil fuels and methane from cattle and rice fields leading to greenhouse effect and global warming. * LAND POLLUTION - pesticides‚ herbicides‚ and nitrates wash into rivers and lakes affecting food chains. Habitat reduction by Humans Human beings are dependent on the Earth’s diversity of species for our survival. Wild species play a vital role in the maintenance of the planets ecological
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SEWAGE TREATMENT Sewage is a mixture of domestic and industrial wastes. It is more than 99% water‚ but the remainder contains some ions‚ suspended solids and harmful bacteria that must be removed before the water is released into the sea. The treatment of wastewater is divided into three phases: pretreatment‚ primary treatment and secondary treatment. Pretreatment Large solids (i.e. those with a diameter of more than 2cm) and grit (heavy solids) are removed by screening. These are disposed of in
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of sediment being compacted over a long time - eroded more easily than other kinds of rock - can contain fossils but no crystals - eg chalk + limestone (from calcium carbonate) - metamorphic rock has crystals - formed by heat + pressure on sedimentary rock - contains interlocking crystals - eg marble (from limestone or chalk) quarrying limestone - produces local jobs in rural areas + improves economy - quarries can be landscaped after - used 4 making cement (heated w powdered clay)
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the country to invest huge in the public‚ co-operative and in private sectors. At present‚ India has more than 63 large sized plants of fertilizers‚ manufacturing wide assortment of fertilizers including nitrogenous‚ phosphatic‚ Ammonium Sulphate (AS)‚ Calcium Ammonium Nitrate (CAN) urea‚ DAP and complex fertilizers. Apart from it‚ there are other 64 small and medium scale Indian manufacturers producing fertilizers. MICHAIL PORTES FIVE FORCES MODEL : Mchail
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BIOLOGY NOTES. UNIT 1: Photosynthesis Photosynthesis Word Equation: Light Carbon Dioxide + Water Oxygen + Glucose Chlorophyll How to test a leaf for starch: 1. Dip leaf boiling water for about 1 minute to soften it‚ stop further chemical changes and make the cell more permeable. 2. Turn off Bunsen burner. Put the leaf into the
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Normal rainfall is slightly acidic because carbon dioxide in the atmosphere dissolves in the raindrops to produce hydrogen ions. Yet‚ normal rainfall is not considered acid rain. Acid rain is a form of air pollution in which airborne acids produced by electric utility plants and other sources fall to Earth in distant regions. The corrosive nature of acid rain causes widespread damage to the environment. The problem begins with the production of sulfur dioxide and nitrogen oxides from the burning
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Yuri Anthony D. Sucgang BMLS-IA Electrophoresis Machine Gel Electrophoresis Apparatus(Aragose Gel) Electrophoresis is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field. Gel electrophoresis is a laboratory procedure used to separate biological molecules with an electrical current. In this lesson‚ we’ll review how agarose gel electrophoresis works and introduce the equipment necessary to perform an electrophoresis experiment.
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Vasil and Hildebrant (1966) and Nitsch and Nitsch (1969) resulting in several media to suit particular needs. Nutrients A standard basal medium consists of a balanced mixture of macronutrients and micronutrients (usually salts of chlorides‚ nitrates‚ sulphates‚ phosphates and iodides of Ca‚ Mg‚ K‚ Na‚ Fe‚ Zn and B‚ a carbon source‚ vitamins‚ phytohormones and organic additives. Among the above mentioned nutrients some are essential and some are optional. The essential components include inorganic
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Name: ___________________________Lab Section __________________ 9/24/12 BIO 10100 Exam 1 Version 1 Prior to completing this exam‚ please read the following statement and sign below to indicate that you have read and understood the statement. No exam will be graded unless the pledge is signed. “I pledge that I have neither given nor received unauthorized assistance on this exam. I understand that if I am charged with cheating‚ my name will be submitted to the Dean for disciplinary action
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Water Pollution Water – The Elixir of Life Can you imagine life without water? Take a minute and think about it. We need water for all our daily essential activities – drinking‚ bathing‚ cleaning… In fact‚ every living thing on this planet needs water Water pollution And what do we do with this vital resource? We take its all important ability – we all know that water can dissolve many of the thing that we dump in it – to make it a giant rubbish bin. In fact‚ we even throw things
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