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Causes of Air Pollution
We known about the composition of atmosphere, its major and minor constituents. The composition of atmosphere has remained the same for thousands of years. However, only in the last 100 to 200 hundred years some changes have occurred and their impact on the biosphere is alarming. The major constituents of air N2, O2 and inert gases that comprises about 99.9% have not changed. But some minor and trace constituents such as sulphur dioxide (SO2), oxides of nitrogen N2O, NO, NO2 (NOx) methane (CH4) chlorofluorocarbons (CFCs) along with carbon dioxide (CO2) in burnt hydrocarbon and suspended particulate matter (SPM) have increased. You know that these are the major air pollutants responsible for the deterioration of air quality.
Explain the Prokaryotic Cells in details? Prokaryotic Cells: Cells that lack a membrane-bound nucleus and have very few distinguishable internal structures when observed wit
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In developing countries because of poor compliance, poverty, ignorance, primary and secondary prevention strategies are difficult to implement properly. Also in western countries (
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Plot the amount of DNA in the nucleus of a spermatogonia from the G1 stage prior to the first meiotic division through the completion of meiosis. Label each of the major stages of
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what are the branches of applied biology?
Q. What are the cells that produce the myelin sheath? Of which substance is the myelin sheath formed? In the central nervous system (CNS) the myelin sheath is made by appositio
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