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Pollution - Environmental Pollution
Pollution refers to any undesirable change in the physical, chemical or biological characteristics of our environment, i.e. air, water and oil that may or will adversely affect humans or other species and life support systems of our biosphere directly or indirectly. A substance whose introduction into a resource damages the latter's usefulness is called a pollutant. Pollutants are grouped into two broad categories:
The non-biodegradable pollutants such as heavy metals, pesticides, move through the food chain and may get magnified to dangerous levels in higher trophic level organisms. Some of these combine with other compounds and produce toxic substances. However, biodegradable materials such as human and animal wastes, agro-based residues and fertilisers can also pose a threat if their quantities or inputs exceed the Assimilative capacity of the environment.
Explain Bidirectional Superior vena cavo pulmonary shunt bidirectional glenn "This is a palliative produce where blood from superior vena cava is diverted to the pulmonary arter
Q. Conditions Necessary for outbreak of botulism? The following conditions are necessary for an outbreak of botulism: 1. Presence of spores of C. botulinum of type A, B o
Define the effect of Vitamins (A, D, K and B-Complex) on athletes? Vitamins A, D and K have been found to have no ergogenic effects. Ingesting large doses of these vitamins hav
How is it structurally explained that the motor activity of the left side of the body is controlled by the right cerebral hemisphere and the motor activity of the right side of the
NONSTRIATED (= SMOOTH) MUSCLES - Non-striated muscles are found in the posterior part of oesophagus, stomach, intestine, lungs, urinogenital tract, urinary bladder, blood ve
X-ray Chest It is helpful in assessing heart size. One should look for presence of pericarditis, pulmonary oedema or pulmonary congestion. ECG One should look for pro
classification sketch of protozoa
What is Atrial Switch operation and Rastelli in Heart dieases? Atrial Switch Operation: (Senning or Mustard procedures) By means of a baffle the systemic venous blood could b
How is the smoothing tendency of cornea functioned? Smoothing tendency: In health and in disease condition the epitheliurm has a strong tendency to smoothen the underlyin
Explain about Diabetes mellitus Diabetes mellitus (DM) has relation with all the systems of our body. With some systems it has direct relationship, while with others it has in
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