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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.
Applications in Horticulture and Agriculture While going round in public parks, you might have observed plants trimmed in such a way giving appearances of animals like camel,
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a) Why are grasshopper and Drosophila said to show male heterogamity? Describe. b) Define female heterogamity with the help of an example.
Transfer RNA molecules are notable for having generally nucleotides shown in the figure such as 1-methylguanosine (m1G), pseudouridine (Ψ), dihydrouridine (D), inosine (I) and
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Q. What is ST segment depression at rest? ST- segment depression has become severe, that is, 3 to 4mm or more in vigorous asymptomatic subjects. If the patient is known to have
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