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When toxic substances enter lakes, streams, rivers, oceans and other water bodies, they get dissolved or lie suspended in water. This causes pollution of water bodies, which degrade the quality of water so that either becomes health hazard or unfit for use and known as water pollution.
It is defined as deterioration of physical, chemical and biological properties of water brought about mainly by human activities and natural activities which causes harmful effects on human, plants and aquatic life.
Example: Domestics sewage, waste water discharge, industrial effluents, surface runoff water into river and sea.
Liver function test should be done for all diabetic patients. This will help the doctor in the choice of drugs for the treatment of diabetes since liver abnormalities influence the
Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.40 µC charge.
1. In chickens rose comb ( R ) is dominant over single comb ( r ). A rose-combed male is mated to a rose-combed female. Eighteen chicks are produced, ten of which are rose-combed,
Define Reagents Estimation of Iron in the Solution? 1. Conc. sulphuric acid (iron free) 2. Conc. potassium permanganate solution 3. Saturated potassium persulphate (K 2 S
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Tracheal Gills - Respiration In many species of aquatic insects the air in the trachae is replenished by diffusion of oxygen via tracheal gills. Many aquatic insects carry a t
(a) Name four examples of compounds which are classed as carbohydrate. (b) What elements are present in carbohydrates? (a) Sugars (glucose, fructose, maltose, sucro
Q. Explain about Oxidation reduction potential? The tendency of a substrate to accept or donate electrons is termed its redox potential (Eh). When a substrate loses electrons,
Define Shell Fish as a rich source of protein? Information on shellfish is fragmentary and incomplete. In shell fish, the shell comprises of a large portion of live weight of t
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