instruction:
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").
question:
Fact1: Annelids have the amazing capacity to regrow segments that break off., Fact2: Annelids have closed circulatory systems., Question: what kind of circulatory system can some segmented animals have? (A) organ (B) insects (C) made (D) warm (E) three (F) complex (G) closed (H) epidermal
answer:
G


question:
Fact1: cold fronts cause thunderstorms as they pass by, Fact2: If cold air replaces warm air, it is called a cold front., Question: What does cold air replacing warm air cause? (A) Greenhouse gases (B) Pollution (C) Dehydration (D) thunderstorms (E) steady barometer readings (F) hypothyroidism (G) constant air pressure (H) stagnant air temperature
answer:
D


question:
Fact1: gases from burning coal and oil dissolving in water in the atmosphere causes acid rain, Fact2: Acid rain kills trees ., Question: what does gases from burning coal and oil dissolving in water in the atmosphere do? (A) chemical changes (B) saves trees (C) forms diamonds (D) vaporization (E) heating liquids (F) kills trees (G) weathering (H) Pollution
answer:

F