Tundra is the region mostly found north of the Arctic Circle.
Answer:
In a pineapple under the sea, in a place called bikini bottom, near a small uncharted isle, where gilligan and his crew crashed on a 3 hour tour, surrounded by many fish, a starfish, and a squid.
Explanation:
Duh
I know jobs for one, over population maybe, and because they are worried that dangerous people could be entering into the country with intention to harm. (unless this is a "only 3 right answer" kind of thing)