The major ingredient of leather is
1 Carbohydrate
2 Collagen
3 Polymer
4 Nucleic acid
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Where Meson particles are found in ?
Wood is the main raw material for the manufacture of 1 Paint 2 Paper 3 Ink 4 Gun powder
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Caustic soda is 1 NaC1 2 Na2CO3 3 NaOH 4 NaHCO3
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can any body tell diffirence between validation and qualification
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there are 3 sources of resistance in a parallel circuit's. 2 of them are rated at 20 ohms, the other at 10 ohms. what is the circuit's total resistance?
Atom bomb is based on the principle of 1 Nuclear fusion 2 Nuclear fission 3 Both (a) & (b) 4 None of these
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Who is the first female cosmonaut?
who is the father of sex?
The gas that usually causes explosions in coal mines is 1 Hydrogen 2 Carbon monoxide 3 Air 4 Methane
An atom of an element with mass number 23 and atomic number 11 will have 1 11 neutrons, 12 protons and 11 electrons 2 11 protons, 12 neutrons and 11 electrons 3 11 neutrons, 11 protons and 12 electrons 4 23 protons and 11 electrons
Which is/are the important raw material(s) required in cement industry? 1 Limestone 2 Gypsum & clay 3 Clay 4 Limestone & clay
Biological Sciences 
