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| Summary |
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 Asia has 60% of global population and continues to dominate the global population in next 50 years. |
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 Some countries in Europe have negative or zero growth of population. |
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 In India, U.P is a populous state but density of population is highest in West Bengal, literacy rate and sex ratio is highest in Kerala, rate of growth of population is highest in Bihar. Thinnest population exists in Rajasthan and Jammu and Kashmir. |
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 Over population can lead to number of economic, social, developmental problems of population - as witnessed in India. |
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 Population control measures can be direct measures like sterilization, birth control methods or indirect methods like extending age of marriage, women's literacy, health care awareness etc. |
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 A scientific achievement like amniocentesis to know the nutritional, genetic disorders of foetus as a part of antenatal care - has been unethically used as sex determination test, which has started new social evil called female foeticide. |
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 Alcoholism can lead to number of social crimes, accidents, and it can destroy family life with a clear negative impact on growing children. |
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 Mental diseases like schizophrenia, epilepsy and neurosis can be cured and managed better with proper rehabilitation and social acceptance. |
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 Drug addiction is a dangerous psychological disorder - with far reaching consequences on central nervous system and brain. Rehabilitation and counseling are the best methods to control abuse. |
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