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Consider the following statements:
1. Only natural sources release heavy metals into the atmosphere.
2. The heavy metals present in drinking water have health benefits for people.
Which of the statements given above is/are correct?
  • a)
    1 only
  • b)
    2 only
  • c)
    Both 1 and 2
  • d)
    Neither 1 nor 2
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Consider the following statements:1. Only natural sources release heav...
  • The term heavy metal refers to any metallic chemical element that has a relatively high density (> 5 g/cm3) and is toxic or poisonous at low concentrations.
    • Examples of heavy metals include mercury (Hg), cadmium (Cd), arsenic (As), chromium (Cr), thallium (Tl), and lead (Pb)
  • Source of Heavy Metals:
  • Heavy metals are introduced into the environment either by natural means or by human activities.
    • Natural Sources: Geographical phenomena like volcanic eruptions, weathering of rocks, leaching into rivers, lakes and oceans due to action of water.
    • Anthropogenic Sources:These metals are released into the water through anthropogenic activities such as mining, manufacturing, electroplating, electronics, discharge from auto exhaust, domestic waste, agricultural waste and fertilizer production. 
  • Effect of Heavy Metals on Human:
    • There are some essential heavy metals that the human body requires in trace amounts such as Cobalt, copper, zinc, and manganese, but it can be detrimental to health in the excessive amount.
  • The heavy metals found in drinking water such as lead, mercury, arsenic, and cadmium have no beneficial effects on your body. 
    • Their accumulation inside the body can cause severe health problems.
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Consider the following statements:1. Only natural sources release heavy metals into the atmosphere.2. The heavy metals present in drinking water have health benefits for people.Which of the statements given above is/are correct?a)1 onlyb)2 onlyc)Both 1 and 2d)Neither 1 nor 2Correct answer is option 'D'. Can you explain this answer?
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