Which of the following serves as an official language of more countries than any other?
a) french
b) english
c) arabic
d) spanish

Which quality ensures that you are in a better position to represent yourself

What are the main functions of the human skeleton? a exchange of gases b support and movement c sensing the environment d digestion and excretion

In a person dependent on a drug, occurs when the drug leaves his or her system quickly or for a prolonged period of time. a. addiction b. withdrawal c. independence d. relapse