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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 Energy requirement in Postoperative Nutritional Care? Adequate calorie intake is critical for successful outcome of surgery and should be provided in the form of ca
If sugar is heavier than aspartame, then the can of regular soda will sink. How will you test this hypothesis? Write brief descriptions of how you could test?
Ask quesWhat type of antigenic agents may constitute vaccines? tion #Minimum 100 words accepted#
LETHAL GENE (2:1 Instead of 1 : 2 : 1 or 3 : 1) (i) All the genes present in an organism are not useful, but some of them show harmful effects and sometimes may cause d
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Explain about the Phosphorus - Macro Minerals? Phosphorus is the second most abundant element in the human body, comprising 30% of the total mineral content. An adult human bod
Anther Dehiscence and Pollen Transfer Anther Dehiscence Anther dehiscence simply means the release of pollen grains from dry and mature anthers. It involves the rupturi
give an account of specific characters of phylum porifera
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