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Nonionising Radiations : As stated earlier the radiation hazards are not limited to ionising radiations from radioactive materials. There are a number of other radiation sources in the laboratories which are potentially hazardous.
What are the Effects of Temperature variations Different minerals present in the rock behave differently to the changing temperatures. The rocks expand on getting heated at day
A tropical storm will be declared a hurricane when: There is evidence of eye formation and sustained wind speeds of 74 mph
Corrosive Substances : These substances cause severe damage by chemical action when in contact with living tissue or in case of leakage, destroy /damage other materials. Mineral a
INTRODUCTION : You have studied about the hazards of electricity in Unit 11 of Block 3. You have learnt that most of the electrical accidents like shock, fire, etc. occur often du
Floating in different liquids Obtain a tall, slender glass jar, test tube or bottle, and the following liquids: mercury, carbon tetrachloride, water and kerosene. You will also
how to prevent skin problems?
Requirements Screw driver - 1 Wire stripper - 1 6/16 A Plug -1 Electrical appliance (any, without plug) - 1
Why does marble rarely contain fossils? This is due to of the way that it is formed. When you have a rock that is formed bymetamorphosis then it has been created by heat and pres
Explain Hypoxia and its Types Hypoxia is the oxygen deficiency at the tissue level below the physiological level. There are four types of hypoxia. Let's get to know them. 1.
Explain the Types of sedimentary rocks? What is a sedimentary rock? The word sedimentary is derived from the Latin word sedimentum which means "settling", which refers to a so
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