In this task, you are given two facts, and a multiple-choice question. Based on the given facts, answer the question with index of the correct option (e.g, "A").

Q: Fact1: soil is formed by rocks eroding, Fact2: Rivers erode the rocks they flow over., Question: What is formed by rivers? (A) fish (B) soil (C) rain (D) bamboo (E) spring (F) clouds (G) kayaks (H) NaCl

A: B
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Q: Fact1: erosion causes a river to become deeper and wider, Fact2: Weathering and erosion continue to shape it today., Question: Weathering causes what to become deeper and wider? (A) a landslide (B) Sediment (C) a mountain (D) a volcano (E) soils (F) rock (G) flooding (H) a river

A: H
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Q: Fact1: Climate influences plant growth, biodiversity, and adaptations of land organisms., Fact2: Forest communities influence their climate and their soil., Question: what influence plant growth, biodiversity, and adaptations of land organisms? (A) high temperature (B) forest communities (C) temperature (D) Temperature changing (E) global warming (F) local weather changes (G) Greenhouse gases (H) Greenhouse gasses

A:
B
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