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: 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

Answer: E


Question: Fact1: Nonmetal elements are far fewer in number., Fact2: Elements to the right of the semiconductors are Nonmetals., Question: Elements to the right of the semiconductors are far what in number? (A) size (B) hole (C) fewer (D) eight (E) calcium (F) several (G) solid (H) shells

Answer: C


Question: Fact1: a thermal insulator slows the transfer of heat, Fact2: Heat transfer fluids, such as antifreeze, protect the solar collector from freezing in cold weather., Question: What protects things from freezing in cold weather? (A) exoskeleton (B) thermal insulators (C) thick filling (D) a hydraulic system (E) Animal fur (F) layers of skin (G) layers of fat (H) deep water

Answer:
B