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: moss causes chemical weathering, Fact2: Mosses Mosses are flowerless plants that grow in clumps., Question: What can cause chemical weathering? (A) Calcium carbonate (B) our nearest star (C) global warming (D) sea squirts (E) swamp vegetation (F) single-celled organisms (G) flowerless plants (H) Earthworms

Answer: G

Question: Fact1: Pneumonia may be caused by an infection or injury of the lungs., Fact2: Lung injuries are treated with bronchodilatory treatment., Question: What treatment can be used in treating pneumonia? (A) the respiratory system (B) a breathing mask (C) bronchodilatory treatment (D) aqueous solution (E) immunotherapy (F) radiation therapy (G) immune system (H) chemotherapy

Answer: C

Question: Fact1: the surface of a beach is formed by mechanical weathering, Fact2: Most beaches are of white coral sand., Question: What action produces much of the sand from coral? (A) reef building (B) radioactive decay (C) mechanical waves (D) glass blowing (E) It used to be covered by water (F) The area was once underwater (G) Mechanical weathering (H) By coral exoskeletons

Answer:
G