A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms, including bacteria and archaea.
I think it the answer is B
The answer to your question is,
Extroversion
-Mabel <3
Answer:
RADON GAS
Explanation:
This is the main source of indoor radon. It flows through the air, ground and surface water. It primarily finds it's way through the soil into buildings and into water supplies. Once it escapes from soil, it discharges from emission stacks into the air.
