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: When pressure is released along a fault line, the energy produced spreads as mechanical waves in the form of an earthquake. The mechanical waves transferred to the air become  
 (A) sound. (B) electricity. (C) light. (D) heat.

A: A
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Q: There is a river at the base of Mount Tom. In the spring the water level is usually very high. In the summer it is lower. The higher level of water during the spring comes from  
 (A) hurricanes. (B) melting snow. (C) tornadoes. (D) evaporating water.

A: B
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Q: A glacier is a slow moving river of ice. How does a glacier help create soil?  
 (A) It scrapes small particles off large rocks. (B) It carries plants down mountains and to oceans. (C) It melts and becomes part of streams and rivers. (D) It freezes small particles of dirt to form large rocks.

A:
A
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