Why are mud houses more thermally comfortable than brick houses?

Which principle does a washing machine operate on?

Which organization developed a lightweight Carbon-Carbon (C-C) nozzle for rocket engines?

What defines a 'Superbug'?

What process is primarily used to convert seawater into drinkable water?

What is the role of Ultraviolet Radiation    (UV)  in the water purification systems?

Who pioneered the development of electroencephalography?

 Which type of Fire extinguisher is used for Petroleum fire? 

Which instrument is commonly used to measure the depth of water bodies?

What is the SI unit of weight?