Science as a social endeavor .Explain
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Marsh gas is 1 Hydrogen 2 Nitrogen 3 Methane 4 Ethane
Which of the following elements is obtained from sea weeds? 1 Argon 2 Sulpur 3 Vanadium 4 Iodine
Which are the two reactors at the indira gandhi centre for atomic research ( igcar )?
Brass gets discolored in air because of the presence of which of the following gases in air? 1 Carbon dioxide 2 Oxygen 3 Hydrogen sulphide 4 Nitrogen
Which of the following gases is obtained by the reaction of copper with dilute nitric acid is 1 NO2 2 N2O5 3 O2 4 NO
Why sun seems to be a red colour while sun-rising and sun- setting?
The disease that is caused by viral infection is
Combustion is the process in which 1 Heat is produced 2 Light is produced 3 Heat and light are produced 4 None of these
Bagasse, a by-product of sugar manufacturing industry, is used for the production of 1 Nylon 2 Glass 3 Paper 4 Alcohol
In a fast breeder reactor, U-238 gets converted to 1 U-235 2 U-237 3 Co-60 4 Plutonium-239
example for navigation satellite?
Soap is a mixture of sodium or potassium salts of 1 Monocarboxylic acids 2 Glycerol’s 3 Dicarboxylic acids 4 Tricarboxylic acids