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: Which of these technologies helps a power company use renewable energy for the production of electricity?
(A) hydroelectric power (B) nuclear power plants (C) natural gas generators (D) coal-fired power plants

A: A
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Q: All of the planets in the solar system formed at about the same time from a large cloud of gas and dust. How is Earth different from other planets in the solar system?
(A) Earth has no natural satellites. (B) Earth's atmosphere is composed of gases. (C) Water is found in all three phases on Earth. (D) Volcanoes release liquid rock onto Earth's surface.

A: C
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Q: Which tool, when properly used, would best help a student classify a basket of apples into groups based on mass?
(A) balance (B) thermometer (C) meter stick (D) graduated cylinder

A:
A
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