The passage infers a relationship between the antiquity of ferns and palms and their ability to

Question

Option 1: live long

Option 2: purify the air

Option 3: grow leaves that live long

Option 4: react successfully in research experiments

AfterBoards · Accepted Answer

**Option 2 (purify the air)** is correct. The passage suggests that because ferns and palms are extremely ancient plants (they've existed for millions of years), they have had a very long time to develop and perfect their ability to clean the air. Think of it like practice — the longer you practice something, the better you get at it! These plants have been "practicing" air purification for millions of years, making them especially good at it. **Why not the other options?** - **Option 1 (live long):** The passage connects their antiquity to air purification, not to how long individual plants survive. - **Option 3 (grow leaves that live long):** The passage makes no connection between their ancient history and the lifespan of their leaves. - **Option 4 (react successfully in research experiments):** The passage does not link their ancient history to how they perform in lab settings.

The passage infers a relationship between the antiquity of ferns and palms and their ability to

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