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.
Answer:
Federalism
Explanation:
Federalism is a form of government that divides sovereign power across two or three levels of government, namely; local, state, and national government. This is done in order to decentralize authority and as such each level of government has independent authority.
Sovereign government is a government that operates independently without external influence.
For example, the United states practice true federalism and as such, power is divided across state and national government.
Answer:Literacy is the ability to write or read
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