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The man-made sources of air pollution are broadly categorized into three:
Point or stationary sources: it includes such sources which pollute at particular. Pollutants from point sources affect only restricted areas.eg: industries, refineries, power- plants.
Line or mobile sources: the line or mobile sources of air pollution are automobiles as these add pollutants along narrow belts and over long distances.
Area sources: towns and cities add smoke and gases over wide areas and so qualify as area sources of air pollution.
How have prokaryotic cells given origin to aerobic eukaryotic cells and to photosynthetic aerobic eukaryotic cells? As per to the most accepted hypothesis aerobic eukaryotic ce
1. Road traffic: of all the sources of noise pollution, road traffic is the most prevalent and perhaps the most damaging source of pollution. More people are exposed to noise
What are halophile, thermoacidophile and methanogen archaebacteria? There are three peculiar parts of archaebacteria. The halophile archaebacteria only survive in salt-rich env
Explain about the Neuro Trauma? Neuro or head trauma includes brain injury, skull fractures, extraparenchymal or internal brain haemorrhage, Brain injury can be divided into th
VACUOLES They are of 4 types - 1. Sap Vacuole - Outer membrane of sap vacuole is called T onoplast . Sap vacuole contains amino sugars, carotenoids, proteins, m
Threshold Value of Different Larval Tissues Threshold value of dissimilar larval tissues for the thyroid hormone concentration One of the main problems of metamorphosis is
Q. What are nerves? Axons extend all through the body inside nerves. Nerves are axon-containing structures presenting many axons and covered by connective tissue. The nerves co
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Q. What is the life cycle of Trypanosoma cruzi? The Trypanosoma cruzi is a heteroxenous parasite that is it has an intermediate host, the triatomine bug, and a definitive host,
Give information as asked about the following mineral nutrients in plants: a. Iron: i. it is a constituent of-, ii. it's one typical deficiency symptom. b. Zinc:
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