Which of the Following Best Describes Air Pollution

Multiple Choice

Which of the following best describes air pollution?

A) Both natural and anthropogenic gases,particles,and other substances in amounts that cause damage to the environment or are harmful to humans.
B) Solely anthropogenic gases,particles,and other substances in amounts that cause damage to the environment or are harmful to humans.
C) Solely natural gases,particles,and other substances in amounts that cause damage to the environment or are harmful to humans.
D) A distinct class of gases,particles,and other substances that the EPA has deemed worthy of regulating.
E) The release of certain gases,particles,and other substances to the air in quantities that exceed local,state,federal,and international laws.