Question detail
What role did water vapour play in the early atmosphere?
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. It increased oxygen levels
- B. It condensed to form oceans
- C. It created greenhouse effects
- D. It contributed to volcanic eruptions
Answer
The correct option is It condensed to form oceans. This answer is correct because it matches the approved learning objective to explain that volcanic activity released gases that formed the early atmosphere in the subtopic The Earth's early atmosphere.
Explanation
The correct option is It condensed to form oceans. It condensed to form oceans is correct because it directly supports the approved learning objective to explain that volcanic activity released gases that formed the early atmosphere. This belongs to the subtopic The Earth's early atmosphere within The composition and evolution of the Earth's atmosphere, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from The Earth's early atmosphere.
Common mistake
Volcanic Gas Misconception
Students often think that volcanic activity only released carbon dioxide and did not consider other gases.
Remember that volcanic activity released a variety of gases, including water vapour and nitrogen, in addition to carbon dioxide.
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