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").

Q: 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

A: A
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Q: 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

A: F
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Q: Fact1: faulting of rock in Earth 's crust causes earthquakes, Fact2: An earthquake is a sudden shaking of the ground., Question: Faulting of rock in Earth 's crust causes what? (A) a lot of human deaths (B) Sudden shaking of the ground. (C) deadly and devastating (D) Earth day. (E) Butter crust. (F) death and devastation (G) a hemisphere is tilted away from the sun (H) Causality.

A:
B
****