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.
Answer:
In addition to genealogical changes, many of the early changes in Indo-European languages can be attributed to language contact. It has been asserted, for example, that many of the more striking features shared by Italic languages (Latin, Oscan, Umbrian, etc.) might well be areal features.
Explanation: