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The earth's environment has been composed in a way which sustains life on this planet. Through on process, the different constituents of the atmosphere are consumed and through the other, these constituents are released into the atmosphere.
But due to industrial revolution, and speedy exploitation of natural resources, the composition of the atmosphere has been changed undesirably. In other words we have polluted the atmosphere.
Pollution is defined as undesirable change in physical, chemical or biological characteristic of are, land and water which is causing harmful effects on our life or that of other living organism and cultural assets. The undesirable or unwanted foreign species or matter causing pollution air, water soil or any segment of environment are called pollutants.
Medtronic-Hall Valve : This is a low profile central tilting disc valve. The disc is made of pyrolitic carbon and housing is single piece of machined titanium. Introduced in
Which is the brain region responsible for the coordination and equilibrium of the body? In the central nervous system the cerebellum is the main controller of the motor coordin
Disease occurrence due to climate change The movement of animal diseases across physical and political boundaries threatens food security and creates a global public co
Why Fish and Sea Foods are important for human Body? They are rich sources of proteins (20-25%) of a high biological value. Dry fishes contain more (60%) proteins since most of
What is hydrogen bonds? Hydrogen Bonds : Hydrogen bonds form between polar molecules, such as water. Each water molecule has two positively charged hydrogen poles, and one ne
Q. What are the main bryophyte groups? The major bryophyte groups are the mosses, the hornworts and the liverworts.
Pericardial Valves: Carpentier Edwards (Perimount Valve) : Pericardium preserved in gluteraldehyde and mounted on flexible stent is available for mitral and aortic positions
Advantages of Metagenesis in Cnidaria In this you have studied that a huge number of Cnidarian colonies are polymorphic and exhibit alternation of generations. This changes o
What is the difference between the endocrine gland and the exocrine gland? Endocrine gland is a gland whose secretions (known as hormones) are collected by the blood and reach
Q. What is the essential morphology of a protozoan cell? Protozoans are eukaryotic cells so they have structures and organelles common to this kind of cell endoplasmic reticula
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