Which is/are the important raw material(s) required in
cement industry?
1 Limestone
2 Gypsum & clay
3 Clay
4 Limestone & clay
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The ratio of pure gold in 18 carat gold is 1 60% 2 75% 3 80% 4 100%
3 Answers DSSSB-Delhi Subordinate Service Selection Board,
How long can arihant stay underwater?
Conversion of a substance directly from solid to vapour state is known as 1 Ionization 2 Evaporation 3 Vapourisation 4 Sublimation
Marsh gas is 1 Hydrogen 2 Nitrogen 3 Methane 4 Ethane
Photosynthesis is 1 An exothermic process 2 An endothermic process 3 A neutral process 4 A thermostatic process
The metal that is present in photo films is 1 Mercury 2 Platimnum 3 Magnesium 4 Silver
What is super nova?
Where did the largest reflector telescope situated?
what does the haversian central canal in each osteon contains?
Nuclear fission is caused by the impact of 1 Proton 2 Electron 3 Neutron 4 None of these
4 Answers Jharkhand Staff Selection Commission JSSC,
is there any device to convert to mechanical energy into electrical energy
In which of the following processes light energy is converted into chemical energy? 1 Respiration 2 Fermentation 3 Photosynthesis 4 Photoresiration