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: mechanical weathering is when rocks are broken down by mechanical means, Fact2: Pysical weathering is the mechanical breakdown of rocks., Question: What is when rocks are broken down? (A) roof weathering (B) Plant growth is reduced (C) brick weathering (D) Physical weathering (E) remains of prehistoric life (F) at or near the margins (G) home weathering (H) major threat to health

A: D
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Q: Fact1: Mammals have a layer of fat under the skin to help insulate the body., Fact2: Glass insulation keeps beverage warm for hours., Question: What keeps mammals warm? (A) evaporation (B) Animal fur (C) staying warm (D) sweating (E) They have thick fur (F) with their fur (G) a layer of fat (H) Veins and arteries.

A: G
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Q: Fact1: burning fossil fuels increases the carbon in the atmosphere, Fact2: An inevitable byproduct of burning fossil fuels is carbon dioxide., Question: what is a byproduct of fossil fuels? (A) heat (B) sugar (C) energy (D) Cars (E) carbon (F) bacteria (G) tar (H) Pollution

A:
E
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