WHAT IS AMBER
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The inert gas which is substituted for nitrogen in the air, used by deep sea divers for breathing, is 1 Helium 2 Argon 3 Krypton 4 Xenon
A team of u.n scientists visited thumba?
When was the indian made rocket “ rohini ” launched from thumba?
Which of the following metals react with nitrogen at room temperature to form nitride? 1 Sodium 2 Potassium 3 Magnesium 4 None of these
Ozone attacks 1 Mercury and silver 2 Copper 3 Silver and iron 4 None of these
why is it important that sex cells have half the number of Chromosomes as body cells?
The filament of an electric bulb is made of 1 Iron 2 Nichrome 3 tungsten 4 Graphite
9 Answers Germanium, Google, Graphite India, Tungsten,
The ore of which of the following metals can be concentrated by hydraulic washing? 1 Tin 2 Sodium 3 Iron 4 Manganese
why our head's weight not feel our body?
Which are known as non - luminous irregular nebulae?
Which of the following elements is obtained from sea weeds? 1 Argon 2 Sulpur 3 Vanadium 4 Iodine
WHAT IS THE FUNCTION OF NIKEL IN CHEMICAL REACTION