Question detail
What is the approximate percentage of nitrogen in the Earth's atmosphere?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
The composition and evolution of the Earth's atmosphere
Question
What is the approximate percentage of nitrogen in the Earth's atmosphere?
Answer
The Earth's atmosphere is about 80 percent nitrogen.
Explanation
A strong answer should directly address the approved learning objective to recall that the Earth's atmosphere is about 80 percent nitrogen. This question belongs to The proportions of different gases in the atmosphere within The composition and evolution of the Earth's atmosphere, so the response should use that exact curriculum context rather than a generic statement. The answer is correct when it names the key idea, explains the link to atmosphere, and keeps the wording specific to AQA GCSE revision.
Common mistake
Nitrogen Proportion Confusion
Students often confuse the proportion of nitrogen in the Earth's atmosphere with that of oxygen, thinking it is around 20 percent instead of 80 percent.
To fix this, students should remember that nitrogen makes up the majority of the atmosphere at about 80 percent, while oxygen is around 20 percent.
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