NextMockপরীক্ষা খুঁজুন, যেমন SSC CGL, UPPSC, Lekhpal
UPSC PYQPrelims 2023

Civil Services Examination · প্রশ্ন 59

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?

  1. Only one
  2. Only two
  3. All three
  4. None
উত্তর দেখান ও ব্যাখ্যা

উত্তর: (C) All three

ব্যাখ্যা

Artisanal gold mining and coal combustion are the largest sources of mercury emissions, and WHO notes no known safe exposure level.