Question detail
What role did volcanic activity play in the formation of 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 removed oxygen from the atmosphere.
- B. It released gases that formed the early atmosphere.
- C. It increased the amount of nitrogen.
- D. It cooled the Earth.
Answer
The correct option is It released gases that formed the early atmosphere.. This answer is correct because it matches the approved learning objective to describe the Earth's early atmosphere as probably containing mainly carbon dioxide with little or no oxygen in the subtopic The Earth's early atmosphere.
Explanation
The correct option is It released gases that formed the early atmosphere.. It released gases that formed the early atmosphere. is correct because it directly supports the approved learning objective to describe the Earth's early atmosphere as probably containing mainly carbon dioxide with little or no oxygen. 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
Misunderstanding Early Atmosphere Composition
Students often state that the Earth's early atmosphere contained mainly oxygen instead of carbon dioxide.
Remember that the Earth's early atmosphere is described as probably containing mainly carbon dioxide with little or no oxygen.
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