Difficulty: Medium
Correct Answer: SRPQ
Explanation:
Given data
Concept/Approach
Establish nearest approach → relative nearness vs. other bodies → farthest distance → infer brightness changes.
Step-by-step reasoning
S gives the near limit, immediately relevant to visibility. R contextualizes Venus's nearness among celestial bodies. P supplies the far limit to show the full range. Q logically explains why brightness varies, making S6 a natural corollary.
Final Answer
SRPQ
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