Expression of IdeasHardSynthesis: comparing two items on one measure
Expression of Ideas practice question
While researching a topic, a student has taken the following notes:
- The Skerry lighthouse was built in 1811 and stands 27 metres tall.
- The Ness lighthouse was built in 1854 and stands 41 metres tall.
- Both are still working lights.
- The Skerry light is visible for 18 nautical miles.
- The Ness light is visible for 24 nautical miles.
The student wants to compare how far the two lights can be seen. Which choice most effectively uses relevant information from the notes to accomplish this goal?
- A. The Ness light can be seen from 24 nautical miles, six miles further than the Skerry light's 18.Correct
- B. The Skerry lighthouse was built in 1811 and the Ness in 1854.
- C. Both lighthouses are still working lights.
- D. The Ness lighthouse stands 41 metres tall.
Answer: A. The Ness light can be seen from 24 nautical miles, six miles further than the Skerry light's 18.
Both ranges, compared.
Why the other answers are wrong
- B. The Skerry lighthouse was built in 1811 and the Ness in 1854.
- Dates, not range.
- C. Both lighthouses are still working lights.
- Status, not range.
- D. The Ness lighthouse stands 41 metres tall.
- One height, no comparison.
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