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: if soil is permeable then water easily flows through that soil, Fact2: Sandy soils are permeable., Question: Water easily flows through what? (A) streams. (B) streams (C) coral reefs (D) sandy soils (E) aqueous solution (F) swamp vegetation (G) calcite (H) Sediment

Answer: D


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: acid rain has a negative impact on water quality, Fact2: Acid rain has a pH below 5.6., Question: What has a negative impact on water quality? (A) rain (B) harmful substances (C) rain below 5.6 pH (D) sleet (E) fossil fuels (F) Burning fuel and air (G) snow (H) decaying trees

Answer:
C