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North Korea says it has successfully carried out its fifth nuclear test. It claims this latest explosion is the most powerful so far. Many world leaders are angry and have condemned the tests, with the US warning of 鈥渟erious consequences鈥漃eople are worried and confused by this latest round of testing 鈥� so naturally they turned to the internet for answers. We鈥檝e tracked down the most-asked questions on Google about North Korea and tried to find the answers.