Tag: How to Questions
Why are chemical fertilisers preferred to manure? Chemical fertilisers are nutrient specific i.e. they can provide specifically nitrogen, potassium or phosphorus to the soil, as desired A manure on …
Why LPG is more advantageous than any other domestic fuels? Liquefied petroleum gas or LPG has a high calorific value than other domestic fuels of about 50 KJ per …
Why are gaps left between the rail joints? The long railway line is made up of small steel pieces called rails joined together. Small gaps are left between the …
Why are the burns caused by steam more severe than those caused by boiling water? Both steam and the boiling water are at the same temperature of 100°C but …
Why are flat screen television sets better than the curved I screen ones? The objects near the edge of a curved screen appear to have less width so there …
Why do we feel an attractive force when we move our hand close to a TV screen? In a television set, the picture is formed by the electrons hitting …
Why and how is solar water Solar Collector heater more economical than the electrical geyser? Electrical geyser get the energy for heating from the electric supply but in case …
Why do the passengers fall backward when the bus starts suddenly? According to Newton’s first law of motion, an object continues to remain in its state of rest or …
