LSAT 105 | Section 2 | Logical Reasoning: Q1

LR Question 1 Explanation

QUESTION TEXT: French divers recently found a large cave along the…

QUESTION TYPE: Most Strongly Supported

FACTS:

1. You can only get into the cave through an underwater tunnel.
2. The cave is full of water. The floor has stalagmites.
3. Stalagmites form when water drops onto the ground.

ANALYSIS: The cave must not always have been full of water. Otherwise the stalagmites couldn’t have formed. Water drops can’t fall underwater.

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1. A higher sea level in the past means the cave was probably full of water in the past too.
2. CORRECT. Otherwise the Stalagmites couldn’t have formed because water drops couldn’t have fallen.
3. There might have been others who discovered the cave and didn’t tell anyone.
4. There’s no reason this would have to be true. Another entrance wouldn’t affect Stalagmite formation.
5. We’re not told how much mineral content is required for Stalagmites.

Recap: The question begins with “French divers recently found a large cave along the”. It is a Most Strongly Supported question. Learn how to master LSAT MSS questions on the LSAT Logical Reasoning question types page.