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
Who propounded the signs of the zodiac?
Please can someone tell me, how many times during a 12 hour period, do the hands of a clock face opposite each other? I believe its 11. Also, would this be the same, no matter WHAT the starting time? i.e. if the 12 hour period started at 6 o clock, would it still be 11 times? Many thanks for your help.
Which comet collided with jupiter?
Which was the international geo - physical year?
Who developed primary blue print programme?
When was the atomic energy regulatory board ( aerb ) constituted?
How long can arihant stay underwater?
What is length and weight of arihant?
When and where was the tata institute of fundamental research founded?
Which is the first atomic submarine of india?
Where is the biggest solar telescope in india situated?
Explain how you can integrate Life skills in Science Teaching
Who invented telescope?
Who commanded the challenger’s first flight?
Explain any four values that can be developed through teaching Physical Science