instruction:
You are given a science question (hard-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.
question:
Which is a renewable resource?  
 (A) oil (B) coal (C) trees (D) aluminum
answer:
C


question:
Growth and activities of organisms can speed up the chemical weathering of rocks. Which organisms naturally cause most of the chemical weathering of rocks?  
 (A) small mammals (B) plant seedlings (C) mosses (D) insects
answer:
C


question:
How does the tilt of Earth’s axis and its rotation affect the weather?  
 (A) The tilt of Earth allows Earth to absorb all of the Sun’s radiation as it rotates. (B) The tilt allows certain latitudes of Earth to be heated at a greater rate while Earth rotates. (C) The tilt of Earth allows Earth to rotate fast enough to allow surface cooling to occur at night. (D) The tilt allows energy to be evenly distributed throughout the atmosphere while Earth rotates.
answer:

B