The answer is relative dating.
Based solely on the situation given, the most correct answer is (b) DSM requires a recurrent pattern of problematic use. DSM<span>-IV Criteria for </span>Alcohol<span> Abuse states that "</span>alcohol<span> abuse" should be manifested by plenty of factors, including: RECURRING </span>alcohol<span>-related legal problems.</span>
Answer:
It is important because plants would not be able to produce food for themselves, so the plant would die. Animals that feed on plants would not be able to survive, and animals that feed on other animals would die too because they would not have any food.