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
Answer Posted / guest
(1) Helium
| Is This Answer Correct ? | 68 Yes | 3 No |
Post New Answer View All Answers
What is practical frequency. ? How create a frequency band?
Name the scientist who has been invited by the Srilankan Governement to have a Study on Employment development?
Which are known as non - luminous irregular nebulae?
In which year the solar observatory in kodikanal founded?
In modern science, what is 'fourth dimension'?
Who discovered radio telescope?
Science as a social endeavor .Explain
how longs & what conditions will a matter, say for example U, after an atomic explosion and was converted completely into energy will again condensed back into a matter named U'
List out the General Objectives of teaching Physical science at Primary stages.
What is the capacity of arihant’s atomic reactor?
When did india conduct three under ground nuclear tests?
Which is the regulatory authority of atomic energy in india?
name all the density all cloth,metals,materials?
NO OF PLANT IN ONGC
what is defination of conductivity? How much conductivity of water ? what is effect when conductity of water low or high?