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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 Asystole and Pulseless Electrical Activity (PEA) The outcomes from these rhythms are generally much worse than for VT/VF, unless a readily correctable cause is identif
Embryonic Induction and Cell Determination The cell determination or fate of embryonic cells is regulated through factors which may reside within the embryonic cells or by the
DIFFERENCE S BETWEEN AXON AND DENDRITE (DENDRON) AXON DENDRIT E (DENDRON) 1. It is single per neur
Important aspects related to regulation include: 1) The hormones glucagon and glucocorticoids which are secreted during starvation stimulate glucose-6-phosphatase to en
What are hormones? Hormones are substances secreted by the endocrine glands and collected by the circulation that act to make effects upon exact organs and tissues. Hormones
Processing of roughage Roughages constitute the bulk of the ration of farm animals and these include green fodder (leguminous and non-leguminous), grasses, and various crop re
general character of class sarcodina
Q. Foods for Growth in microorganisms? Microorganisms differ in their ability to use various nitrogenous compounds as a source of nitrogen for growth. The primary nitrogen sour
Influenza Influenza is an acute infectious disease caused by influenza viruses of genus Orthomyxovirus in family Orthomyxoviridae. The name Influenza is derived from an Italian ph
Similarities in body parts often indicate shared ancestry. Which of the following is true? Structures used for different purposes in different groups can be controlled by the same
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