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: Most salamanders use their sense of smell to find a mate., Fact2: Like frogs, salamanders are amphibians., Question: What uses its sense of smell to find a mate? (A) the Sun (B) peachleaf willow (C) rocks (D) fur seals (E) warm-blooded (F) trees (G) passenger pigeons (H) some amphibians

Answer: H

Question: Fact1: a greenhouse is used to protect plants by keeping them warm, Fact2: Flower size varies by plant., Question: How does a greenhouse protect flowers? (A) keeps them away from the sun (B) keeps them warm (C) keeps them out of soil (D) an external framework (E) it needs them (F) keeps them cold (G) rays or beams (H) by indirect light

Answer: B

Question: Fact1: Loss of ozone has created an ozone hole over Antarctica., Fact2: Ozone is a key atmospheric chemical and protective ultraviolet shield., Question: What does the hole over antarctica reduce? (A) the weight of the air (B) the environment (C) water vapor (D) Ultraviolet shielding (E) air pollution (F) Warm air (G) radiation (H) Warm water

Answer:
D