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: Flowing water can slowly dissolve carbon in sedimentary rock., Fact2: Rivers and streams are bodies of fresh, flowing water., Question: What can slowly dissolve carbon in sedimentary rock? (A) hydrocarbons (B) acetic acid (C) precipitation (D) evaporation (E) rivers and streams (F) puddles (G) ponds (H) nitrogen

A: E
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Q: Fact1: disease-causing microbes have a negative impact on the body, Fact2: Water was tested for the presence of disease-causing microbes., Question: Water that is not what can have a negative impact on the body? (A) salinity (B) chemicals (C) sweat (D) an object (E) tested (F) deadly (G) dangerous (H) dead

A: E
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Q: Fact1: Electron transport is the final stage of aerobic respiration., Fact2: Long distance running, swimming, bicycling, and aerobic activity rely on endurance., Question: Long distance running involves  transport of (A) heat energy (B) electrons (C) heat produced (D) loose dirt (E) Energy (F) Energy. (G) Weight (H) movement

A:
B
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