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: gases released during the use of fossil fuels causes global warming, Fact2: Oil is a fossil fuel., Question: Gases released during the use of oil causes what? (A) global warming (B) better weather on the earth (C) colder weather (D) less oily air (E) The atmosphere (F) flooding (G) Temperature (H) cleaner air to breathe

Answer: A


Question: Fact1: nuclear reactions in stars causes stars to produce light, Fact2: Like the Sun, stars generate light and heat through nuclear fusion., Question: What causes stars to produce light? (A) nucleus (B) energy (C) gases (D) mitosis (E) fusion (F) chemicals (G) fire (H) boiling

Answer:
E