If a question asks about nearly ninety-nine percent of dry air, which group is correct?
Answer and explanation
Correct answer: Nitrogen and oxygen
Option A is correct because dry air is composed mainly of nitrogen, about 78 percent, and oxygen, about 21 percent; together they account for approximately 99 percent. The word “dry” excludes variable water vapour from the calculation. Carbon dioxide, ozone, methane and neon occur in much smaller amounts, while dust is not a principal gaseous component.
Frequently asked questions
What is the correct answer to this question?
Nitrogen and oxygen
Why is this the correct answer?
Option A is correct because dry air is composed mainly of nitrogen, about 78 percent, and oxygen, about 21 percent; together they account for approximately 99 percent. The word “dry” excludes variable water vapour from the calculation. Carbon dioxide, ozone, methane and neon occur in much smaller amounts, while dust is not a principal gaseous component.
Which subject and chapter does this question cover?
This is a Class 11 Accountancy question. Chapter: Theory Base of Accounting. Topic: accounting principles.
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