EnvS U4

• Acidification


  A process in which the pH decreases as conditions become more acidic.
• What is acidification?

  A process where pH decreases, becoming more acidic
• What causes acid rain?

  Atmospheric pollution by sulphur dioxide and nitrogen oxides
• What is acoustic fatigue?

  Stress cracking from repetitive sound vibrations
• What is an activated carbon filter used for?

  To reduce emissions of complex organic molecules
• What is active traffic management?

  A method to control road usage and speed limits
• What are activation products?

  Atomic nuclei that become radioactive after neutron absorption
• What does acute exposure mean?

  Rapid appearance of symptoms after exposure
• What is adsorption?

  Atoms or molecules adhering to a surface
• What is aerodynamics?

  The study of airflow over surfaces
• What does ALARA stand for?

  As low as reasonably achievable
• What are baffle mounds used for?

  To absorb and deflect noise