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 form of energy is found in food?  
 (A) chemical (B) electrical (C) sound (D) mechanical
[A]: A


[Q]: Overuse of soil for farming causes local disruptions of several Earth subsystems. Which of these is a part of the biogeochemical cycle that experiences the most severe local disruption?  
 (A) release of carbon into the atmosphere (B) release of oxygen into the atmosphere (C) cycling phosphorus into the soil (D) cycling hydrogen into the soil
[A]: C


[Q]: Which statement best compares gravity on the Moon to gravity on Earth?  
 (A) Gravity on the Moon is greater because it is closer to the Sun. (B) Gravity on the Moon is less because it is smaller than the Earth. (C) Gravity on the Moon is less because it has less atmosphere than the Earth. (D) Gravity on the Moon is greater because it has less mass than the Earth.
[A]:
B