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What is eutrophication?
Eutrophication is the process of excessive enhancing of nutrients, like phosphate and nitrate, in water because of direct deposit of non treated sewage. The nutrients act as fertilizers leading to abnormal proliferation of aquatic algae. With the exaggerated growth of the alga population the number of aerobic bacteria that cause decomposition of organic material also enhances. The proliferation of these bacteria depletes the dissolved oxygen killing fishes and other animals. Besides, the lack of oxygen causes the decomposition to be supposed by anaerobic bacteria. Anaerobes multiply and release hydrogen sulfide that makes water improper to other living beings and makes a putrid smell.
Q. What are the hormones secreted by the thyroid gland? What are their functions? The thyroid secretes the triiodothyronine (T3), hormones thyroxine (T4) and calcitonin. T3
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Q. Explain about Rheology of Foods? Rheology is the study of stress and strain or in other words, it is the study of flow and deformation of materials, both liquids and solids,
Q. Is the stage when an insect larva is within a cocoon a stage of total biological inactivity? The period when the larva is inside its cocoon is a time of intense biological a
Summary of Accident Causation In the light of above theories it is concluded that the decision of workers to work safe is largely influenced by external factors such as meetin
Patent Ductus Arteriosus (PDA) PDA is one of the most common cardiac anomalies. It occurs twice as frequently in girls as in boys. In patent ductus Arteriosus there is
Hypolimnion - Summer Stratification This zone forms the bottom layer which is deep, cold and non- circulating. The hypolimnion is generally rich in nutrients though its oxygen
Distribution Coefficient - Terminologies used in Chromatography? During the purification or separation of the biomolecules it should be kept in mind that two important factors
Nutrients and the Soil Early experiments on mineral uptake were performed by Hoagland, Stout and Amon in 1923. They showed that minerals were taken up from the soil primarily
what is the difference between anaisogyami & oogyami?
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