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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.
An increase in the calcium conductance of all sarcoplasmic reticulum membranes of a skeletal muscle with no external forces on it leads to A. increased binding of calcium ions
Is dwarf pampas grass invasive? No. the root system is shallow and extends only as far as the plant is large. Though if the irrigation system is installed poorly and the pipes
Phylum Ciliophora 1) They have cilia at some stage in the life-cycle. The cilia are used for locomotion or creating a feeding current. 2) They feed heterotrophically usually
Define Nutritional Management of Food Allergies and Food intolerance? In this unit we will be discussing the adverse reactions associated with food. You may have read or heard
Why are calcium carbonate and carbon dioxide and carbon monoxide considered inorganic compounds? "The name "organic" is a historical name, dating back to 19th century, when it
What is Ecology? The Ecology is the field of Biology that studies the relationship between living beings and between living beings and the environment.
What is Energy ? Energy Energy is defined as the capacity to do work. Work is defined as the movement of a mass, or the product of the force and the distance through which t
Deep fat frying Deep fat frying, as you may already know, is the method which involves cooking food in hot fat/oil. The fat immediately surrounds the food and cooks it from all
what is the prevailing wind direction in equatorial regions affected by the trade winds? a) The wind blows from east to west b) the wind blows from west to east
What is the lasting form in the gametophyte, pteridophytes or the sporophyte? How can it be compared to bryophytes? The lasting form in pteridophytes is the diploid (2n) sporop
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