Which of the following gases is NOT present in the air?
Answers
Answered by
1
Answer:
Radon is a radioactive element and is not found in the atmosphere. It is found in rocks containing uranium ores and is produced by the radioactive decay of radium.
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7
Answer:
Oxygen gas
Explanation:
Explanation:Oxygen gas
Explanation:Oxygen gasAnswer. Oxygen gas was absent in the atmosphere at the time of origin of life
Explanation:Oxygen gasAnswer. Oxygen gas was absent in the atmosphere at the time of origin of lifehope it helps.... Please Mark As Brainliest
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