(a) Give any two important sources of background radiation.

1.	(a) Give any two important sources of background radiation.
Answer» Cosmic rays – radiation that reaches the Earth from space.Rocks and soil – some rocks are radioactive and give off radioactive radon gas.Living things – plants absorb radioactive materials from the soil and these pass up the food chain. Explanation:One common source of background radiation is cosmic rays. This type of radiation comes from space and makes it through our atmosphere in small amounts. Certain rocks and parts of the Earth's surface give off background radiation, though the amount varies by location.

Answer»

Cosmic rays – radiation that reaches the Earth from space.Rocks and soil – some rocks are radioactive and give off radioactive radon gas.Living things – plants absorb radioactive materials from the soil and these pass up the food chain.

Explanation:One common source of background radiation is cosmic rays. This type of radiation comes from space and makes it through our atmosphere in small amounts. Certain rocks and parts of the Earth's surface give off background radiation, though the amount varies by location.

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