North Korea, located North of South Korea and south of China borders both China and South Korea.
Hope this helps
You can take Dramamine, get/apply a scopolamine patch, try ginger supplements, eat something to settle your stomach, or apply pressure to your P6 point.
Convert Gass Engines to Electric ones
You’re sliding or drifting in snow or you just hit black ice
A survey is considered valid if it measures what it is supposed to measure, because if it didn't measure what it was supposed to measure, it would lose it's credibility and not make any sense. The word that goes in the blank is "valid".