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Alla [95]
3 years ago
12

Is a radioactive gas that forms in rocks underground.

Chemistry
1 answer:
Amiraneli [1.4K]3 years ago
6 0

Answer:

Radon gas.

Explanation:

It forms naturally from the decay (breaking down) of radioactive elements, such as uranium, which are found in different amounts in soil and rock throughout the world. Radon gas in the soil and rock can move into the air and into underground water and surface water.

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