When was the first american rocket launched?
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What is blood ? Describe its functions in the human body ?
Which scientists gave detailed information about nebula?
What are vitamins ? describe different kinds of vitamins
Which of the following is used for removing air bubbles from glass during its manufacture? 1 Feldspar 2 Arsenious oxide 3 Potassium carbonate 4 Soda ash
What was the code name given to the first explosion?
The ore of which of the following metals can be concentrated by hydraulic washing? 1 Tin 2 Sodium 3 Iron 4 Manganese
How many astronauts travelled in the challenger?
Who was the first cosmonaut?
The disease that is caused by viral infection is
Why the right to property was removed from the list of the Fundamental Rights?
The location and energy of an electron in an atom can be specified by 1 Atomic mass 2 Atomic number 3 Quantum numbers 4 None of these
What is used in arihant’s atomic reactor?