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.

[Q]: Carlos was playing on a slide on a sunny summer day. Which property of the slide tells Carlos how much energy the slide absorbed from the Sun?
(A) the mass (B) the color (C) the height (D) the temperature
[A]: D

[Q]: Which of the following forms of energy is released or absorbed in most chemical reactions?
(A) light energy (B) electrical energy (C) sound energy (D) heat energy
[A]: D

[Q]: A student must explain the role of dead leaves in the ecosystem. Which statement will the student most likely provide to explain the importance of these leaves?
(A) The leaves provide shelter to growing seeds. (B) The decay of the leaves provides nutrients to other plants. (C) The leaves release chlorophyll into the grass as they decay. (D) The leaves prevent fungus from growing at the base of the tree.
[A]:
B