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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.
Q. How is reproduction done in beings of the class Reptilia? These beings reproduce sexually through internal fecundation by means of copulation between female and male individ
heterotrophic nutrition in any 5 types of organism
Supra Vulvar Aortic Stenosis : Supra valvar aortic stenosis in children with elfin facies, mental retardation, multiple peripheral pulmonary artery stenosis and hyper calcem
Chronic Renal Failure (CFW) Chronic renal failure begins when the diseased kidney can no longer maintain the normal chemical structure of body fluids under normal conditio
Some observations seen in this fever are: 1. Massive loss of lean body mass or muscle due to tissue breakdown (250-500 g muscle tissue is lost/day) leading to excessive nitro
ENDOCRINE GLANDS OF AN INSECT - The endocrine glands of cockroach are as follows. 1. Intercerebral gland cells. These cells lie in the brain. They secrete brain horm
DETERMIN A TIO N OF THE AGE OF FOSSIL - Radioactive clock (Boltwood -1907) - Half life of uranium is 4.5 billion years. This means half of total uranium disintegrates
Calculate the diffusion coefficient of a protein bovine serum albumin at 23 degree Celsius?
A study set out to determine whether tetrahydrocannabinol (THC, the psychoactive component of marijuana) affects fertility in male hamsters. Two different experiments were conducte
what cell organelle does photosynthesis take place in?
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