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.

Which would be the best method to use to dispose of cardboard boxes not utilized by a local grocery store?  
 (A) burn them once a month (B) send them to be dumped in a remote area (C) have them recycled for future paper products (D) put them into a dumpster with the rest of the trash
C

Which of these is a nonliving part of a forest?  
 (A) Tree (B) Soil (C) Worm (D) Mushroom
B

A ball rolling on the ground is observed to slow down and stop. Based on Newton's first law of motion, what is the best conclusion?  
 (A) An object in motion eventually stops. (B) The ball must have been going slightly uphill. (C) The ball did not have enough mass to keep going. (D) There must have been an outside force acting on the ball.

D