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: Temperature falls from lower to higher altitudes., Fact2: If the weather is warm, their temperature rises., Question: What falls from lower to higher altitudes? (A) warm weather (B) sun's heat (C) rainfall (D) heat energy (E) kinetic energy (F) water vapor (G) colder and wetter (H) Greenhouse gasses

Answer: A


Question: Fact1: Mutations are essential for evolution to occur., Fact2: Mutations are changes in the DNA sequence., Question: What is essential for evolution to occur? (A) Changes in DNA sequences (B) Plant reproduction (C) Natural disasters (D) Gamma radiation (E) biological diversity (F) DNA sequences staying the same (G) the environment (H) that material's properties

Answer: A


Question: Fact1: conserving water can be used for survival in a dry environment, Fact2: Most of the southwest is semi desert and very dry., Question: Where is conserving water useful for survival? (A) abalone (B) desert (C) marshland (D) cactuses (E) earth (F) wetlands (G) river bank (H) watershed

Answer:
B