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Use the following procedure for fire fighting.
(1) Always take a position between the fire and the exit so your escape route cannot be cut off. Fire extinguishers should always be placed close to doors and other exits for this reason.
(2) Do not continue to fight a fire if it is dangerous to do so or if there is a possibility that your escape route may be cut off by fire or smoke. A potentially fatal asphyxiating concentration of carbon dioxide can build up quickly if C02 extinguishers are operated in an enclosed space.
(3) If you have to withdraw, close doors or windows behind you, wherever possible.
The recommended procedures for operating the different types of fire extinguishers
Archaeological Evidence: The study of human antiquities, especially of prehistoric period is known as archaeology. The biological and cultural evolution of man proceeded side
Another way to observe the buoyancy of water Push a large cork to the bottom of a pail of water. Notice the quantity of force you have to apply to hold the cork at the bottom.
Carbon dioxide, dry powder and vapourising liquid extinguishers : Fires produced by spilled liquids should be extinguished by directing the jet or discharge horn towards the near
To show how water rises in fine tubes Make some fine hair or capillary tubes by heating glass tubing in a flame and drawing it out. Cut the tubes and glue them to a piece of c
How is the parathyroid hormone secretion regulated? It is simple. An increase in parathyroid hormone causes an increase in calcium absorption from the intestine and renal tubul
Explain the term- lichens The lichens are able to extract nutrients from the rocks . They are capable of retaining water for a long time during which chemical processes take p
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INTRODUCTION : You may find this exercise as a practical illustration for the procedure generally followed in the disposal of unserviceable and obsolete items in a laboratory. It
Explain the Nephrotic Syndrome A type of nephritis (an inflammation of the kidneys) that is characterized by low serum albumin, proteinuria and swelling (oedema). Swelling, wei
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