Ballroom <span>dancing gained popularity</span>
Answer: to protect the boarders
Explanation: National Security's Purpose And Role. National security is the means by which the Federal Government provides protection over the country by means of the economy in terms of militaristic as well as political powers. There are a variety of means by which the Government may ensure such national security.
Mountains made it hard to find flat land.
Answer:
by using scientific methods to date key events
Explanation:
The answer of that question would be false
