They built 11 mounds at Spiro near the Arkansas River.
Answer:
They make sure that immigration laws are followed and they screen refugees that applied to enter the US.
Explanation:
The Department of Homeland Security,DHS is one of the agencies in the United States of America that is saddled with the responsibility of preventing terrorists into the country. The department of homeland security, DHS make sure that the borders are secure and make sure that the regulations and laws regarding immigration are followed properly.
The department of homeland security also make sure that there is no cyber to the the United States of America.
They make sure that immigration laws are followed and they screen refugees that applied to enter the US.
For the answer to the question above asking w<span>hich three of these inventions helped trigger the agricultural revolution in Britain?
the question is incomplete however the techniques are </span>the plow irrigation, and faster methods of farming and the crop rotation techniques<span>
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Purchased the Louisiana Territory from France.
I think the correct answer is constitutional democracy. this type of government is limited by a constitution.
