Widespread sources of potential ionizing radiation exposure ...

[B]

Widespread sources of potential ionizing radiation exposure include all of the following except
 
  1. Accidents at nuclear power plants.
  2. High-tension power lines.
  3. Improperly disposed of nuclear waste.
  4. Radon gas seeping into homes and buildings through basements.

Question 2

Drunk driving, involuntary smoking, noise exposure, traffic congestion, and urban crowding are problems that influence health due to
 
  1. Atmospheric quality.
  2. Living patterns.
  3. Violence risks.
  4. Work risks.

[Jordin Calloway]

Answer to Question 1

ANS: 2

Answer to Question 2

ANS: 2