Answer: low pressure = inclement high pressure =light winds and fair skies
Explanation: This is due to density differences between two air masses. A low-pressure area is commonly associated with inclement weather, while a high-pressure area is associated with light winds and fair skies.
The similarities between the climate regions of this wast places can be seen in the climate of all of Canada and the Patagonia, Tierra del Fuego and Andean regions of South America, where there is snow fall, cold and harsh conditions, glaciers, summers that are short and not warm. The differences can be seen in the other regions of South America where there's climate regions that are lacking in Canada, there's tropical rain forests, semi dry plateaus, desert...
I think the answer is 1 or 2