You are given an elementary science question along with a few answer options. List all the words from the question that are essential and sufficient for choosing the correct answer option. Keep in mind that essential words are necessary to understand the meaning of the given question. However, non-essential words provide little information needed to select the correct answer. You can think about it like this: If the question was in another language, knowing the meaning of which words were necessary and enough for you to understand the question and answer it?. If your answer consists of multiple spans of words from the question, separate those using a comma (", "). Do not generate any word that is not present in the question. Make sure that your response is contained in the given question and the words are in the same order as the question.
 Grammatical correctness is not important.
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Question: Question: Scientists can study the organisms that lived in a certain area over a million years ago by examining ___. (A) weather patterns (B) fossils (C) rings on trees (D) minerals?

Answer: study, organisms, lived, area, million, years, ago, examining


Question: Question: Students want to find out at which temperature bean plants grow tallest. Which science process skill would be used to find this temperature? (A) inferring (B) predicting (C) measuring (D) classifying?

Answer: process, skill, used, find, temperature?


Question: Question: Which of the following allows an organism to survive in an environment that is changing? (A) The number of predators in an ecosystem (B) The size of the organism's ecosystem (C) The ability of the species to adapt (D) The number of organisms in different populations?

Answer:
organism, survive, environment, changing?