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").
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Question: Fact1: coal is used for generating heat by burning, Fact2: Coal and lignite are the lithified remains of plants., Question: What are the lithified remains of plants used for? (A) heat production (B) generating heat by burning (C) harvesting crops (D) damming rivers (E) food and shelter (F) heat is produced (G) A transportation fuel (H) planting seeds

Answer: B

Question: Fact1: chemical weathering causes iron in rock to oxidize, Fact2: Oxides Oxides Oxides are elements combined with oxygen., Question: Chemical weathering causes iron in rock to combine with what? (A) uranium (B) oxygen (C) cartilage (D) nothing (E) an object (F) vacuum (G) energy (H) heat

Answer: B

Question: Fact1: unequal heating of Earth 's surface by the Sun causes global wind patterns, Fact2: Large cyclonic systems influence the wind patterns of the middle latitudes., Question: unequal heating of Earth 's surface by the Sun causes Large cyclonic systems where (A) deserts (B) Temperature (C) global warming (D) over mountains (E) flow of electrons (F) rain or sun shine (G) middle latitudes (H) russia

Answer:
G