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The main causes for the rapid growth in the quantity of solid wastes are-
(i) Over population: the ever increasing population is increasing all types of pollution; same is true for solid waste pollution too.
(ii) Urbanization: solid waste pollution increases with the increase in urbanization. In developed countries, for instance in USA, urban areas produce about 7.0 lac of solid wastes each day-an amount sufficient to cover more than 1.6 sq. km of land every day to a depth of 3.0 m.
(iii) Affluence: with production or per capita consumption, there is a tendency to declare items as obsolete, resulting in their. This leads to solid waste pollution.
(iv) Technology: rapidly growing technologies for most economic goods are leading to returnable packaging to non-returnable packaging. For example, returnable glass bottles/ containers being replaced by non-returnable cans, plastic containers etc.
Three ways in which food might become contaminated by harmful bacteria. Food may become contaminated:- (i) from the unwashed hands of a food-handler, (ii) by house- flies
Distinguish features in the mechanisms of RNA synthesis, + (RNA), (-) RNA, and ds RNA viruses.
Given that most AIDS victims die from overwhelming infections or rare types of cancer, what body system do you think HIV (the AIDS virus) impairs?
What are the 3 phases of seed formation
Disposal : Opaque bags are the recommended for disposing off carcasses. You should also put freshly dissected animals and tissues into opaque plastic bags, seal them and dispose t
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R e striction enzyme analysis: The restriction endonuclease analysis of viral DNA fragments or DNA fingerprinting discovered in 1970s has revolutionized the study o
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