Question

During diving, the gas used for breathing is a mixture of oxygen and
(A) Nitrogen & Helium
(B) Helium
(C) Argon
(D) Carbon Dioxide
गोताखोरी में श्वसन के लिए जो गैस प्रयुक्त होती है उसमें ऑक्सीजन और .... का समावेश होता है।
(A) नाइट्रोजन व हीलियम
(B) हीलियम
(C) आर्गन
(D) कार्बन डाइऑक्साइड​

Answer 1

Answer:

(a) nitrogen and helium

Explanation:

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Answer 2

Answer:

The gas used for breathing is a mixture of oxygen with Nitrogen & Helium

Explanation:

Along with oxygen, both nitrogen and helium can be used for deep-sea diving as breathing mixtures.

Nitrogen was used in the early days. Later by research, it was founded that the nitrogen dissolves in blood and it becomes toxic and poisonous to the human body as it forms Nitric oxide at high pressure.

In our blood helium is less soluble than nitrogen. Nowadays helium-oxygen is most preferred for most of the diving.