Given a scientific passage and an answer, generate a question for the given answer.
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Question: Passage: Descriptive statistics and graphs help organize data so patterns and trends are more apparent. Descriptive statistics include the mean and range. Types of graphs include bar, circle, and line graphs. Answer: graphs

Answer: Bar, circle, and line are all types of what?

Question: Passage: Not all wetlands are alike, as you can see from Figure below . Wetlands vary in how wet they are and how much of the year they are soaked. Wetlands also vary in the kinds of plants that live in them. This depends mostly on the climate where the wetland is found. Types of wetlands include marshes, swamps, and bogs. Answer: wetlands

Answer: Marshes, swamps, and bogs are types of what?

Question: Passage: Volcanoes at divergent plate boundaries are in the East Pacific Rise. Convergent plate boundaries, where there are trenches, have volcanoes. Hotspot volcanoes are in chains in the middle of the ocean basin. Answer: volcanoes

Answer:
What do convergent plate boundaries with trenches have?