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INTRODUCTION : In the first unit of this block you read about hazards due to electricity and gases in the science laboratories. 'The second unit deals with yet another type of common hazard which is because of fire. The consequences of fire are well known; still many do not take enough precautions and preventive measures. According to National Crime Record Bureau, the number of deaths in our country due to fire accede its during 1994 and 1995 are 23050 and 21226, respectively. The person-in-charge of any laboratory should have a knowledge to handle a fire hazard. In case the fire spreads beyond control, the laboratory staff should know how to call the fire brigade, raise the alarm and ask for other help. In this unit, you will learn about the major causes of fire, its classification, precautions and prevention. You will also learn about the fire extinguishers. The next unit deals with hazards in handling chemical and radioactive materials.
Requirements Experimental animals Digging and scooping equipment Disposable bags
Q.Name two biologically important compounds that contain both oxygen and nitrogen. Two biologically important compounds that contain both oxygen and nitrogen are: (i) Amino a
Explain Lipid Metabolism I ? You learnt earlier in Unit 5 that the lipids are absorbed through the intestine. As these molecules are oils, solubilization (emulsification) of di
the characteristics of the core
what is the cause of earth''s magnetism?
Disposal of Unserviceable and Obsolete Items : Every institution may have evolved its own procedure for the same. Generally the following procedure is used for the disposal of uns
1. The solid wastes from a summer camp with 100 children and a staff of 25 are to be collected once per week. If bottles and cans (representing 20% of the weight) are removed, pape
What is the difference among a canyon, gorge, and valley? The easiest way to answer this is to describe each term, so you can see: 1) A canyon is a deep valley with steep si
Accidents in laboratories, by and large, occur due to unsafe work practice. The accidents may result in harm to someone and/or damage to equipment and premises. In this unit, we ha
Explain the Complement System To remove a microorganism by phagocytosis requires phagocytes at the right place in the right time. The organism should adhere to the phagocyte. M
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