Question detail
A student is revising The proportions of different gases in the atmosphere. Which option best matches the atmospheric timeline evidence for this specification point: Distinguish the major gases in the present atmosphere from trace atmospheric gases?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
The composition and evolution of the Earth's atmosphere
Question
- A. Nitrogen
- B. Oxygen
- C. Carbon Dioxide
- D. Neon
Answer
The correct option is Neon. Neon is correct because it matches the atmospheric timeline evidence required for The proportions of different gases in the atmosphere.
Explanation
Neon is the correct option. Focus on the order of atmospheric changes, not just naming a gas. This answer supports the approved objective: Distinguish the major gases in the present atmosphere from trace atmospheric gases. In The proportions of different gases in the atmosphere, a correct response must stay within The composition and evolution of the Earth's atmosphere and avoid borrowing wording from a neighbouring atmospheric chemistry objective.
Common mistake
Confusing Major and Trace Gases
Students often confuse major gases like nitrogen and oxygen with trace gases such as carbon dioxide and noble gases.
To fix this, students should memorize the major gases in the atmosphere and understand that trace gases are present in much smaller amounts.
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