TASK DEFINITION: You are given a science question (easy-level) and four answer options (associated with "A", "B", "C", "D"). Your task is to find the correct answer based on scientific facts, knowledge, and reasoning. Do not generate anything else apart from one of the following characters: 'A', 'B, 'C', 'D'. There is only one correct answer for each question.
PROBLEM: How is xylem similar to phloem in a plant?  
 (A) They both take in water from the soil. (B) They both transport materials through the plant. (C) They both make sugar in the leaves. (D) They both store waste products in the plant cells.

SOLUTION: B

PROBLEM: How do most fish get the oxygen they need to survive?  
 (A) They take in water and break it down into hydrogen and oxygen. (B) Using their gills, they take in oxygen that is dissolved in water. (C) They get their oxygen from the food they eat. (D) They come to the surface every few minutes to breathe air into their lungs.

SOLUTION: B

PROBLEM: The atmosphere of Earth blocks many of the Sun's rays. If weather patterns change and more of the Sun's rays penetrate the atmosphere of Earth, which is most likely to increase?  
 (A) the number of daylight hours (B) the evaporation of oceans (C) the length of each season (D) the pull of gravity

SOLUTION:
B