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6 May, 08:44

Which gas is a source of natural groundwater pollution?

a. Radon

b. Carbon

c. Oxygen

d. Hydrogen

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Answers (1)
  1. 6 May, 08:54
    0
    It is A) Radon Gas! : D

    Radon gas is a contaminated stock of the oxidation of spontaneously befalling uranium within the Earth's shell.
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