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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.
The various organs involved in the digestion process are: Alimentary tract which includes mouth, pharynx, esophagus stomach, small intestine, large intestine, appendix, rec
Radiographic Evaluation - criteria for endosteal implants Surgical and interventional imaging involves imaging the patient during and immediately after surgery and during the
Q. What is compensation point? What is the inference of the compensation point for the plant growth? The photic compensation point is the photic energy intensity under which ae
what is life span
Genomic blot is the type of Southern blot particularly used to analyze the mixture of DNA fragments derived from total genomic DNA. Because the genomic DNA is quite complicated, w
The blood vessels surrounding an acutely inflamed site usually represent progressive vasodilatation from the time of injury.
Do fishes there an open or closed circulatory system? How many chambers does a fish heart have? How does blood flow all through the fish body? As in every vertebrate the circul
Explain the Fermentability or Degradability? As you are aware that colon contains over 400 known species of bacteria that exist in a symbiotic relationship with the host. All f
Q. How does the sexual arousal mechanism in women facilitate fecundation? During sexual arousal in women the vagina secretes substances to neutralize its acidity thus allowing
CHARACTERISTICS OF FEMALE'S SKELETON - 1. Skull is lighter. 2. Shoulders are nanow. 3. Sacrum is shorter but wider. 4. Pelvis is wider. 5.
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