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: Some viruses can cause cancer., Fact2: Cancer is an example of a mutation in cells., Question: What can mutate cells? (A) Allergies (B) water (C) fruits (D) flow of electrons (E) vegetables (F) harmful substances (G) rays or beams (H) some viruses

Answer: H


Question: Fact1: mechanical weathering is when rocks are broken down by mechanical means, Fact2: Water is a mechanical weathering force., Question: What  weathers rocks? (A) soil (B) streams (C) a delta (D) calcite (E) erosion (F) water (G) grass (H) the sun

Answer: F


Question: Fact1: condensation causes clouds to form, Fact2: Clouds bring rain and shade., Question: What does condensation cause? (A) water (B) emptiness (C) sandstorms (D) guilt (E) heat (F) rain (G) gas (H) H20

Answer:
F