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: volcanic ash in the atmosphere decreases the temperature by blocking the sun, Fact2: Ash clouds are a particular problem for aircraft., Question: What are particular problems for aircraft in the atmosphere? (A) transportation (B) clog airways (C) extremely low humidity (D) volcanic clouds (E) feedback mechanisms (F) negative feedback (G) gas spreads in the air (H) very complex
[A]: D


[Q]: Fact1: a battery converts chemical energy into electrical energy, Fact2: Electrical energy can be converted into kinetic energy and heat energy by an electric motor., Question: What can convert chemical energy into kinetic energy (A) a magnet (B) a vacuum (C) a windmill (D) a battery (E) arteries (F) barnacles (G) animals (H) engines
[A]: D


[Q]: Fact1: absorbing energy causes objects to heat, Fact2: All light is energy, which is eventually absorbed and turned into heat., Question: What does light cause an object to do? (A) It expands (B) Grow faster (C) Start dying (D) observe it (E) Get cold (F) break off (G) Warm up (H) moves
[A]:
G