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UPSC Prelims 2023 Paper-1 📅 28 May, 2023

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
Result Summary
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APEDIA

UPSC Prelims
2023 • 28 May, 2023 • Paper-1
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?
Correct Answer
All three
Subject: Environment.Context: Heavy Metal Pollutants.Details: Statement 1 is correct; Artisanal and Small-Scale Gold Mining (ASGM) is the largest global source ......
💡 Analysis & Explanation
Subject
Environment.
Context
Heavy Metal Pollutants.
Details
Statement 1 is correct; Artisanal and Small-Scale Gold Mining (ASGM) is the largest global source of anthropogenic mercury emissions. Statement 2 is correct; burning coal in thermal power plants releases significant amounts of mercury into the atmosphere. Statement 3 is correct; the World Health Organization (WHO) states that mercury is highly toxic, and there is no known safe level of exposure, especially for fetuses and children.