UnScramble this Word: l g y n i?

Questions

geographic tyrrivia: native american indians are of which human subrace? (e.g. caucasian)?

geographic tyrrivia: the only national airline that has never had a crash nor a forced landing.?

geographic tyrrivia: this country is home to the world's oldest continuous local democracy.?

geographic tyrrivia: where did the most powerful explosion ever witnessed on earth occur??

geographic tyrrivia: which american state's name is spanish for "colored" or "colored land"??