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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.
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Define Categories of Fatty Acids? The fatty acids can be discussed under following heads: Saturated and Unsaturated, Short chain, medium chain and long chain,
What is signifying by "gene locus"? The Gene locus (locus means place) is the location of a gene in a chromosome that is the position of the gene in a DNA molecule
Etiology The causes of diarrhoea can be classified as follows: i) Infectious causes Viral : Rota virus, Norwalk and allied viruses, Enterovirus, Influenza virus,
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Q. In which period of life does the formation of gametes begin in women? The meiosis that forms female gametes begins in the cells of the ovarian follicles before birth after t
If sugar is heavier than aspartame, then the can of regular soda will sink. How will you test this hypothesis? Write brief descriptions of how you could test?
a) What is biological magnification? b) Describe how DDT as a water pollutant undergoes biological magnification?
Which of the below describes the type of fruit characterized as a dry, simple, one-seeded indehiscent (pron: in-deh-HISS-ent) fruit with seed attached to one ovary wall at only one
Assortment is a method in which the meiosis produces new combinations of the genetic information. The paternal and maternal chromosomes line up randomly during the process of syna
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