Describe a source of radon that could lead to indoor air pollution.

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.

if you are asking how much they can go over the 1500 limit it would be safetly within the 2310 and 2600.mg

answer; i believe that the correct answer is (b) communication skills);