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: a breathing mask is used for keeping harmful particles from entering the respiratory system, Fact2: Oxygen enters the respiratory system through the mouth and the nose., Question: Breathing masks are used to keep harmful particles from entering the mouth and the what? (A) body (B) eyes (C) air (D) skin (E) gullet (F) nose (G) ears (H) lungs
[A]: F


[Q]: Fact1: Freshwater biomes have water that contains little or no salt., Fact2: Biomes are global ecosystems., Question: what is freshwater habitats that contain little or no salt? (A) Animal survival (B) allow growth (C) weathering (D) atmosphere (E) loose soil (F) ecosystems (G) salt and water. (H) oceans
[A]: F


[Q]: Fact1: some light bulbs convert electricity into light and heat energy, Fact2: Electricity requires the movement of electrical charges., Question: Which of the following can process the movement of charges into light and heat energy? (A) Unplugged refrigerators (B) Firecrackers (C) energy (D) our nearest star (E) Melted candles (F) kinetic energy (G) Light bulbs (H) Burning stoves
[A]:
G