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: All chemical reactions require activation energy to get started., Fact2: Fire is a chemical reaction., Question: What does fire require to get started? (A) an engine (B) activation energy (C) water (D) energy usage (E) direct energy (F) dogs (G) activated almonds (H) adding heat

A: B
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Q: Fact1: Birds evolved from a group of bipedal dinosaurs called theropods., Fact2: All hawks are birds., Question: What evolved from a group of bipedal dinosaurs called theropods? (A) alpacas (B) bacteria (C) hawks (D) vision (E) humans (F) animals (G) mammals (H) viruses

A: C
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Q: Fact1: bacteria in soil convert atmospheric nitrogen into a form usable by plants, Fact2: Nitrogen deficiency increases the stress on the plants., Question: What does bacteria in the soil help to prevent? (A) contamination (B) colder weather (C) Pollution (D) anemia (E) plant stress (F) Greenhouse gasses (G) toxins (H) disease

A:
E
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