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Air Pollution - Environmental Pollution
The threat due to air pollution became apparent only when some severe episodes caused human casualty in USA, Britain (London) and Japan. In 1948 in Donara town of USA twenty people died and thousands became ill due to prolonged trapping of pollutants in the atmosphere emitted from steel mills and zinc smelter plants. In 1952 nearly 2,500 people died in London when the city got enveloped by sulphuric acid vapours, particulate matter and sulphur dioxide.
The most tragic episode in history occurred in December 3rd, 1984 at Union Carbide in Bhopal when approximately 36 tonnes of methyl isocyanate (MIC), an extremely poisonous gas used in the synthesis of sevin - a pesticide, escaped shortly after midnight from a storage tank and spread like mist and cloud over the city. The poison caught people in their sleep, awakening them in choking pain, terror and panic. Many got killed during sleep. It is estimated that around 10,000 people died and more than 2, 00,000 were injured. Many survivors suffer from permanent respiratory illness and impairment of vision.
Viscosity and Plasticity of colloidal particle Various degrees of viscosity and plasticity are encountered in colloids. Viscosity may be described as resistance to pouring.
Protein structure is determined solely by a protein amino acid sequence. Should a genetically engineered protein in which the order of all amino acids is reversed therefore have th
Q. Use of echocardiography in pericardial diseases? One of the earliest clinical applications of echocardiography was in the detection of pericardial effusion and it remains th
How is the genetic determination of sex established in humans? In the diploid genome of the human beings, there are 46 chromosomes, 44 of them are autosomes and two are sex chr
Cidofovir (Vistide) IV cidofovir given once weekly for 2 weeks and then once every 2 weeks for maintenance therapy can delay progression of CMV retinitis in patients with AIDS
In the Miller-Urey experiment, amino acids of bothe the L and D enantionmers. Why is it that the L enantionmer is more dominant in living things?
protozoa and metazoa
The modern water treatment plan is often called upon to perform wonders with the water fed to it. The clear, safe , even tasteful water that comes from a faucet may have started a
Non-Surgical Therapy The most conservative approach to treatment involves non-surgical therapy. This treatment modality includes three subcategories: a) Pharmacological ther
Explain the Inoculating Loops and Needles? These are most commonly used tools for inoculation. The inoculating loop consists of insulating handle at the end of which inoculatin
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