As far as a threat, North Korea has been seen as such for many years (since WWII), when North Korea sided with Russia. America and its Capitalism were not fond of the Communist party, and so we have really been fighting/being concerned about Russian influence.
Historically North and South Korea have been in conflict many years before America and Russia got involved. When we did though it got worse.
Trump has done very little to resolve this, some would say he is making it worse.
AND as for any current events ask Google!
The feature of Wegener's idea of continental drift contributed to its rejection by the scientific community is that Wegener proposed that gravitational forces from the Sun and Moon could move continents. Read below about Wegener's idea of continental drift.
<h3>What is Wegener's idea of continental drift?</h3>
Alfred Wegener proposed that the continents were at sometime united into a single supercontinent named Pangaea, meaning all earth in ancient Greek. He posited that Pangaea broke up long ago and that the continents then moved to their current positions. He called his hypothesis continental drift.
Therefore, the correct answer is as given above
learn more about Wegener's idea of continental drift: brainly.com/question/7350119
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