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.

Question: A tropical rain forest contains many tall trees. Smaller plants with large leaves grow at the base of the tall trees. The large leaves are most likely an adaptation of the plant due to which condition? (A) lack of sunlight (B) lack of oxygen (C) lack of water (D) lack of food?
Smaller, plants, large, leaves, base, tall, trees., large, leaves, adaptation

Question: Base your answers on the information below. One hot, summer day it rained very heavily. After the rain, a plastic pan on a picnic table had 2 cm of rainwater in it. Four hours later, all the rainwater in the pan was gone. Which process caused the rainwater in the pan to disappear as it sat outside in the hot air? (A) condensation (B) evaporation (C) precipitation (D) erosion?
2, cm, all, pan, caused

Question: Jonny climbed an apple tree. How are Jonny and the apple tree similar to each other? (A) Both are made of cells. (B) Both take in carbon dioxide. (C) Both get nutrients directly from soil. (D) Both get energy from other organisms.?

Jonny, tree, similar