Which gas is mainly required for respiration in living beings?
Answer and explanation
Correct answer: Oxygen
Most living organisms use oxygen in aerobic cellular respiration to break down food molecules and release usable energy for life processes. Therefore, option D is correct. Nitrogen is abundant in air but is not directly used for ordinary respiration, carbon dioxide is generally a product of respiration, and ozone is reactive and harmful at high concentrations rather than being the normal respiratory gas.
Frequently asked questions
What is the correct answer to this question?
Oxygen
Why is this the correct answer?
Most living organisms use oxygen in aerobic cellular respiration to break down food molecules and release usable energy for life processes. Therefore, option D is correct. Nitrogen is abundant in air but is not directly used for ordinary respiration, carbon dioxide is generally a product of respiration, and ozone is reactive and harmful at high concentrations rather than being the normal respiratory gas.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Trial Balance and Rectification of Errors. Topic: Preparing trial balance and correcting errors.
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