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: acid rain has a negative impact on water quality, Fact2: Sulfur dioxide causes acid rain., Question: What has a negative impact on water quality? (A) Reverse osmosis (B) fossil fuels (C) Fresh water (D) Carbon filter (E) chlorofluorocarbons (F) Sulfur dioxide (G) Pollution (H) harmful substances

Answer: F


Question: Fact1: Mammals have a layer of fat under the skin to help insulate the body., Fact2: Harbor seals, like sea lions, have evolved to utilize a layer of fat called blubber., Question: How do sea lions keep warm? (A) protected (B) warm (C) Swimming fast (D) Sleeping (E) hydration (F) Blubber (G) four limbs (H) Eating a lot of fish

Answer: F


Question: Fact1: thirst is used to make an animal realize that it needs to replenish its bodily water by the body, Fact2: Water Water in the area's natural water bodies is drinkable as such., Question: what is used to make an animal realize that it needs to replenish from a natural drinkable source (A) spring (B) excretion (C) blood (D) pain (E) thirst (F) tiredness (G) hunger (H) rain

Answer:
E