Part 1. Definition
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.
Part 2. Example
Which part of a bicycle BEST moves in a circle?
(A) Seat (B) Frame (C) Foot pedal (D) Kickstand
Answer: C
Explanation: Seat, frame and Kickstand are static parts of the bicycle, even when bicycle moves. Foot pedal moves in a circle as bicycle moves.
Part 3. Exercise
At an archaeological dig site, scientists, volunteers, and students collect items used by people living hundreds of years ago. To determine the history of the different people who may have lived at the site, which is the best method to classify the recovered items?
(A) by the type of item (B) by the size of the item (C) by the person who located the item (D) by the soil layer where the item was found
Answer:
D