advantages

Reduces burden on forests and fossil fuels Produces a clean fuel - helps in controlling air pollution Provides nutrient rich (N & P) manure for plants Controls water pollution by decomposing sewage, animal dung and human excreta..

1. It is economical since there is no wastage of sulphur. 2. Sulphur of 99.5% purity is obtained. Thus it need not be further purified. 3. The process is simple and cost effective. 4. The process is continuous and does not requite rebuilding of structur..

Soaps are not suitable when hard water is used. Detergents can be used with both hard and soft water. Detergents are more soluble in water than soaps. They also have a stronger cleansing action than soaps. Detergents don't need expensive vegetable oil for their preparation as they can be prepared ..

Sodium metal obtained has high degree of purity (99.5%). The starting material, sodium chloride is very cheap. Chlorine is obtained as a useful by-product..

It is present everywhere. It is available in plenty. It does not cause any environmental pollution like the fossil fuels and nuclear power. Solar cells last a longer time and have low running costs. In the first half of the twentieth century solar energy was used in a very limited way. ..

Reduces burden on forests and fossil fuels Produces a clean fuel - helps in controlling air pollution Provides nutrient rich (N & P) manure for plants Controls water pollution by decomposing sewage, animal dung and human excreta..

Dimensional equations are used to validate the correctness of a physical equation. Dimensional equations are used to derive correct relationship between different physical quantities. Dimensional equations are used to convert one system of units to another. Dimensional equations are used..

The successive generations of communication satellites can incorporate the latest developments in electronics and communication engineering technology. This would help to pack much more capacity into satellites of comparable size. It is possible that with the advances in technology, the cost of sa..

Rotation of crops improves the fertility of the soil and hence, brings about an increase in the production of food grains. Rotation of crops helps in saving on nitrogenous fertilizers, because leguminous plants grown during the rotation of crops can fix atmospheric nitrogen in the soil with th..

Echoes can be useful or a nuisance. In a concert hall, echoes can ruin a performance if the walls and ceiling are not properly designed. If the walls are too hard, or too flat, they make good reflecting surfaces for the sound waves. Echoes can be used to give vital information. A sonar (Sonar stan..