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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.
Individuals of the following genotype are crossed: aa BB Cc Dd (crossed with) Aa Bb Cc Dd A) How many different phenotypes are possible for the progeny? B) What are the chanc
What is karyotype? Name the karyotype is given to the set of chromosomes of an individual, generally when visualized and identified under the microscope. The visualization in g
What is the difference between plasma membrane and cell wall? Plasma membrane and cell wall is not the similar thing. Plasma membrane, also called cell membrane, is the outer m
Define Recommended Intake of Fibre? 1. A minimum of fibre intake of 20 g/day is recommended by the American Dietetic Association (ADA), the National Cancer Institute, US and th
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Airway: Place the patient supine on a firm surface with his head at level or slightly lower than the level of heart. Immediately, clear the airway and start rescue brea
Q Identify truly exciting problem areas in integrative and environmental biology that need an integrated approach utilizing mathematics and statistics. What questions absolutely n
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Explain about the supply curve or supply schedule. The supply curve or schedule shows the total quantity of a good or a service supplied within aggregate, by whole sellers or f
Q. Do plants have tissue organization and specialized organs? Plants have specialized organs (like roots, limbs, reproductive organs, leaves) and differentiated tissues (suppor
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