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: 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

Answer: D


Question: Fact1: Cells are programmed to divide only a set number of times., Fact2: Cells reproduce asexually, by dividing., Question: Cells are programmed to _  only a set number of times. (A) migrate (B) expand (C) A computer (D) Most plants (E) allow growth (F) reproduce (G) contract (H) constrict

Answer: F


Question: Fact1: Cells secrete acids and bases to maintain the proper pH for enzymes to work., Fact2: Enzyme mechanisms Enzymes are biological catalysts., Question: For biological catalysts to maintain proper pH, what is needed to maintain proper pH? (A) Fully cooking the oysters (B) raising their temperature (C) Organic compounds (D) Something made from fermented ricce (E) metabolic reaction (F) Chemical energy (G) Something coming from a gland (H) secretion of acids and bases

Answer:
H