Question

how do sentences 16 and 17 support the central ideas? they give a reason why more people should study the rainforests. they give an example of a benefit of studying diverse forest life. they give a description of how knowledge can come from unexpected sources. they explain the reasons why there are too few cancer treatments.

Explanation:

To solve this, we analyze each option:

• Option 1: If the central idea relates to studying rainforests, but the question is about how sentences 16 - 17 support (not why people should study). Eliminate.
• Option 2: If the passage’s central idea involves benefits of studying diverse forest life, giving an example of such a benefit matches how sentences support the idea.
• Option 3: “Knowledge from unexpected sources” is not implied here (focus is on forest study benefits, not knowledge sources). Eliminate.
• Option 4: The sentences are about forest study, not explaining cancer treatment shortages. Eliminate.

Answer:

They give an example of a benefit of studying diverse forest life.