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: soil erosion means soil loss through wind, Fact2: Soil erosion is one of the leading causes of water pollution in the United States., Question: What is one consequence of soil loss? (A) Decrease bodily water (B) humans disturb it (C) drying out (D) flooding (E) contamination (F) deforestation (G) chemical changes (H) Water pollution

A: H
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Q: Fact1: lungs are used for breathing air by land animals, Fact2: Elephants are the largest animals on land., Question: What uses lungs for breathing air? (A) rocks (B) some mammals (C) Frogs (D) monotremes (E) humans (F) bacteria (G) elephants (H) oak trees

A: G
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Q: Fact1: lightning can cause a forest fire, Fact2: Forest fires are examples of wildfires., Question: What causes wildfires? (A) movement (B) Lightning (C) Snow (D) road bends (E) Earthquake (F) lamphreys (G) Flood (H) moving plates

A:
B
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