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: acid rain has a negative impact on water quality, Fact2: Sulfur dioxide causes acid rain., Question: What has a negative impact on water quality? (A) Reverse osmosis (B) fossil fuels (C) Fresh water (D) Carbon filter (E) chlorofluorocarbons (F) Sulfur dioxide (G) Pollution (H) harmful substances

Answer: F


Question: Fact1: fog is formed by water vapor condensing in the air, Fact2: Water vapor rises into the atmosphere., Question: what does the atmosphere do before turning into fog (A) adapt (B) rest (C) Rise (D) fall (E) cooled (F) snow (G) swirl (H) Lift

Answer: C


Question: Fact1: the Himalayas were formed by rock folding, Fact2: It is located in the Himalayas on the borders of Tibet and Burma ., Question: What was formed by rock folding? (A) Something located on the Sun (B) marshes, bogs, and swamps (C) Something located on the border of Tibet and Burma (D) Something located on Venus (E) Something caused by pressure differences (F) Something that take eight minutes to travel to the Earth (G) Something located in the Pacific Ocean (H) soil loss through hurricanes

Answer:
C