The correct answer is - the Americas.
The Americas from what is known and discovered till now are by far the latest continents that were settled by the people. Even though it is still not clear when exactly did this happened it is in the range between 19,000 and 12,000 years ago as the biggest given and lowest given number by scientists. It is understandable though that people found it hard to migrate in this part of the world since it was cut of by an ocean and the only way that they could migrate was through the Bering Land Bridge which in fact was an icy bridge between the continents and extremely inhospitable place. There is also the large carnivores in North America as a factor that delayed the migration, and of course the ongoing ice age which covered huge portions of North America with glaciers, ice and snow.
The answer for the question above would be option D. Japan. The country that is considered as the leader in cracking down on the use of chlorofluorocarbons is JAPAN. Due to their advanced technology, they have also found ways on how to reduce the emission of chlorofluorocarbons. Hope this answers your question.
I think the correct answer is false. Most of North America do not have the same climate type. Climate can differ all over the U.S. One moment it can be 100 degrees in Texas and In Ohio it can be only 60. Hope this answers the question. Have a nice day.
That would wolud be .... uh well b lol