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Surface Run-off - Causes of Water Pollution
The surface run-off from cultivated lands where inorganic fertilisers, pesticides, insecticides and rich manure are applied and solid waste disposal from urban and industrial sites, bring heavy loads of pollutants into natural water bodies.
Application of nitrogen fertilisers and nitrates and ammonia released from manure increase nitrate content of water bodies. As you know soil bacteria convert ammonium ions into nitrate which has high mobility because of its solubility in water and negative charge. It cannot bind to negatively charged clay and humic micells; therefore, nitrate ions gradually leach from the soil by percolating water and eventually find their way into ground water.
Given four respiratory capacities (a - d) and four jumbled respiratory volumes of a normal human adult: Respiratory Respiratory capacities volumes. 1. Residual vol
Q. Concerning reproduction what is the function of the testicles? The testicles are the male gonad that is the organs where the production of gametes takes place. In human bein
Define Biochemical and Metabolic Problems and their Management? Hypokalaemia (low concentration of potassium ion in the blood), we learnt earlier, is a problem caused due to se
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Leptospirosis Synonyms: Weil’ disease, canicola fever, 7-day fever Leptospirosis is an important and widespread zoonosis. It was first described by Adolf Weil in 1886 when h
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Define Types of Root Canal Perforations According to location According to location (level) in relation to crestal bone): Coronal perforation: (supragingival) coronal to
The oxidation of sugar in the cell of higher organisms takes place in the where
How can we determine the status of brain function Neuropsychological assessment is the clinical practise of using tests and other behavioural evaluation instruments to determin
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