Biology
Grade-8
Easy
Question
The element that is present in atmosphere and is required for respiration process in all living organisms is ________.
- Sulfur
- Phosphorous
- Oxygen
- Nitrogen
Hint:
The element that is present in atmosphere and is required for respiration process in all living organisms is oxygen.
The correct answer is: Oxygen
- Respiration is the combination of inhalation and exhalation.
- The gaseous exhange includes oxygen and carbon dioxide.
- Even the lower organims undergo gaseous exchange.
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