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: One important use of coal is to produce energy for homes. Coal can be burned and converted to
(A) wind energy. (B) nuclear energy. (C) electrical energy. (D) solar energy.

SOLUTION: C

PROBLEM: The moon goes through phases as it revolves around Earth. During which phase of the moon would it be possible for a solar eclipse to occur?
(A) new moon (B) full moon (C) waning (D) waxing

SOLUTION: A

PROBLEM: Scientists have studied convergent boundaries and the results of the collisions. Besides the fact that mountains occur at these boundaries, which other part of the rock cycle is most likely associated with these areas of convergence?
(A) development of chemical rocks (B) development of extrusive rocks (C) development of layered rocks (D) development of folded rocks

SOLUTION:
D