Question
Biology Question on Environmental Issues
Which of the following is not a cause of natural pollution?
A
Volcanic eruption
B
UV radiation
C
Forest fire
D
Mercury
Answer
Mercury
Explanation
Solution
Natural pollution comes from natural sources like release of methane by cattle and paddy fields, carbon dioxide from plants and animals, dust storms, nitrogen oxides, ozone, volcanic eruptions, emission of natural gas, soil erosion, ultraviolet rays, etc. Mercury is not a cause of natural pollution.