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: astronauts require preserved food for extended flights, Fact2: An astronaut is a scientist who is a space explorer., Question: Space explorers require preserved foods for (A) ground training (B) nutrients (C) Dehydration (D) survival (E) long flights (F) short flights (G) Special disposal (H) day trips

Answer: E


Question: Fact1: rocks interacting with wind over long periods of time causes weathering, Fact2: On Earth, rocks are weathered by wind and water, creating soil and sand., Question: What causes rocks to weather? (A) seasons (B) force (C) erosion (D) storms (E) water (F) heat (G) lightning (H) gas

Answer: E


Question: Fact1: evaporation can be used for separating a solute from a solvent in a solution, Fact2: For example, in salt water, salt is the solute and water is the solvent., Question: What could be used to separate salt from water (A) Condensation (B) engines (C) Evaporation (D) Sublimation (E) a delta (F) Precipitation (G) energy (H) Time and energy

Answer:
C