Consider the following statements regarding mercury pollution :
1. Gold mining activity is a source of mercury pollution in the world.
2. Coal-based thermal power plants cause mercury pollution.
3. There is no known safe level of exposure to mercury.
How many of the above statements are correct?
- A.Only one
- B.Only two
- C.All three
- D.None
Show answer
Gold mining and coal burning are the two biggest human sources of mercury, and no level of exposure is known to be safe.
Read the full explanation →