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: Air pollution harms the respiratory and circulatory systems., Fact2: Cars are a significant source of air pollution., Question: What harms the respiratory and circulatory systems? (A) oil (B) rain (C) sulfur (D) cars (E) tires (F) coal (G) tar (H) bicycles

Answer: D


Question: Fact1: habitat destruction causes animals to move to find shelter in another habitat, Fact2: All species are threatened due to the destruction of their natural habitat., Question: All species move to find shelter in another what (A) survive (B) streams (C) alluvial (D) habitat (E) coral reef (F) watershed (G) climate (H) loose soil

Answer: D


Question: Fact1: landfills have a negative impact on the environment, Fact2: Trash ends up in landfills ., Question: What has a negative impact on the environment? (A) trash (B) wind (C) disease (D) recycling (E) carbon offsets (F) mines (G) deserts (H) nature

Answer:
A