5 safety hazards

The first and only atomic bombs were used in war was in 1945 when Hiroshima and Nagasaki were devastated. Widespread destruction and damage were produced immediately by the blas..

Some of these wastes are also classified as hazardous wastes. are those that are potentially dangerous and can cause diseases, fire, etc. The hazardous wastes include toxic wastes. Toxic wastes are those that are poisonous in nature. Hazardous wastes are those that ca..

Electric Fuse - An electric fuse is a device which is used to limit the current in an electric circuit. The use of a fuse is to safeguard the circuit and the appliances connected in the circuit from being damaged. Parts of an Electric Fuse Working of a Fuse W..

A nuclear reactor is a device for obtaining and using the energy from a controlled nuclear chain reaction. Controlled means the rate or speed of the nuclear fissions can be changed by the operator. Most reactors are constructed in a similar manner. The six main parts of a nuclear reactor are fuel, ..

Due to bioaccumulative characters, these pollutants pass through the food chain and food web. While passing through the organisms, the concentration of pollutants gets increased. This is called bio magnifications. For e.g., 0.5 ppm DDT in grasses gets magnified to 2ppm in sheep. It may b..

A ship sinks in water until its weight is equal to the upthrust on it. This upthrust is the weight of the water displaced by the submerged part of the ship. The density of the sea varies in different parts of the world. This is due to the mineral salts dissolved in sea water as well as the variatio..

Lightning and Lightning Conductors - During thunderstorms, large amount of electrical charge separation takes place in the clouds. As a result, some regions of the cloud have overall positive charge, while others have overall negative charge. When this separation becomes sufficient, the air ionizes..

a) Checking the air pollution by strict imposition of laws on factories. b) Reducing vehicular traffic and encouraging public transport vehicles than individual vehicles. c) Use of unleaded petrol. d) Regular check of exhaust gases from vehicles to declare their status in respect of pollution. e) ..

Commercial manufacture and use of synthetic insecticides in the last six decades has led to many problems such as Air pollution during manufacturing stages. Bhopal gas disaster is a worst example for air pollution. Accidental ingestion of insecticides during handling and application leading t..

Laboratory Preparation of Nitrogen - In the laboratory, nitrogen is prepared by heating a mixture of ammonium chloride and sodium nitrite and a small quantity of water. If ammonium nitrite is heated by itself it decomposes to produce nitrogen gas. However, this reaction is very fast and may prove t..