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: pollutants have a negative impact on the environment, Fact2: Carbon dioxide is a pollutant., Question: What affects the environment negatively? (A) sunlight (B) normal weather patterns (C) carbon dioxide (D) cigarettes (E) positivity (F) Smoking (G) harmful substances (H) fossil fuels

Answer: C


Question: Fact1: Energy is passed up a food chain or web from lower to higher trophic levels., Fact2: Plants represent the first trophic level., Question: What passes energy up the food chain to adult vegans? (A) cows (B) animals (C) Batteries. (D) chickens (E) Power companies. (F) glucose (G) Humans. (H) Plants.

Answer: H


Question: Fact1: Hydrogen bonds cause water to expand when it freezes., Fact2: Water is everywhere H20., Question: What causes H20 to expand when frozen? (A) evaporation (B) vaporization (C) hydrogen bonds (D) helium bonds (E) mysterious forces (F) nitrogen bonds (G) Physical weathering (H) precipitation

Answer:
C