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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 the Secretary Phase - Menstrual Cycle After ovulation, the lining of ovarian follicle is stimulated by LH to develop corpus luteum which produces progesterone. The endo
Q. Source of nutrients and energy of Microorganisms? Microorganisms use foods as a source of nutrients and energy. Each kind of microorganism has a definite range of food requi
What is the Determination of vitamin B 1 Vitamin B 1 is determined by chemical method and microbiological assay. In the chemical method, vitamin B 1 is oxidized in alkaline
what is Acute Massive Pulmonary Embolism ? Acute Massive Pulmonary Embolism : Before the era of open-heart surgery, Trendelenburg (1908) described technique of open p
Characteristic of Ecotone A general characteristic of ecotone is that it has sufficiently greater number of species and the diversity of most of the species at times is higher
Define Bioactive Substances from Protein Foods? Bioactive substances are derived from living organisms that can be used by humans for a variety of applications. They are consti
Acute Aortic Regurgitation : The most dramatic presentation occurs in dissection of the aortic root. Endocarditis of the native or prosthetic aortic valve may also lead to a
Food Applications of Curdlan Curdlan has a variety of food applications as enumerated herewith: a) Meat and Poultry Curdlan makes meat and poultry products juicier and
What is the type of cell division that allows sexual reproduction? What is gametogenesis? Meiosis is the type of cell division that permits sexual reproduction since it decreas
Explain Gelation - Function of proteins Gelation refers to the process where denatured molecules aggregate to form an ordered protein network. Proteins can form a well-order
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