What is the main importance of oxygen in the atmosphere?
Answer and explanation
Correct answer: It supports respiration and combustion
Oxygen is essential for aerobic respiration, through which most animals, plants and many microorganisms release energy from food. It also supports combustion, because burning substances react with oxygen and release heat and light. Clouds are formed mainly when water vapour condenses, oxygen is not the main source of dust, and atmospheric oxygen does not normally destroy the ozone layer. Hence option B is correct.
Frequently asked questions
What is the correct answer to this question?
It supports respiration and combustion
Why is this the correct answer?
Oxygen is essential for aerobic respiration, through which most animals, plants and many microorganisms release energy from food. It also supports combustion, because burning substances react with oxygen and release heat and light. Clouds are formed mainly when water vapour condenses, oxygen is not the main source of dust, and atmospheric oxygen does not normally destroy the ozone layer. Hence option B is correct.
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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