Question
Which inert gas is used as a substitute for nitrogen in
air for deep-sea divers?Solution
Helium is preferred for deep-sea diving because it is inert, has a low narcotic effect under pressure (unlike nitrogen), and reduces the risk of nitrogen narcosis. However, divers must still manage decompression sickness, as helium can dissolve in tissues under high pressure.
Choose the correct sentence.
 India and Bhutan signed ten MOUs in the field of space research, aviation, power and education.
- Select the option that expresses the given sentence in active voice.
The entire room was decorated by the staff. Select the correct passive form of the given sentence.Â
Somebody has already tipped the custom authorities about the drugs.
Select the correct passive form of the given sentence.
Hasn’t India established the air travel bridge to the Maldives?
Select the option that expresses the given sentence in passive voice.
The first-year students are bidding farewell to their seniors.
Select the correct active form of the given sentence.
Three online games of chess were won by Rahul in a row.
Select the correct passive form of the given sentence.
Your behavior annoys me greatly.
Was the room decorated by him?
- Select the option that expresses the given sentence in active voice.
The final decision was made by the manager.
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