it is tundra
Greenland is the island located in the Arctic region but belongs to Denmark, which is outside the Arctic region. Greenland's large landmass and geographic location in the Arctic make it distinctive from other Arctic territories.
That's pretty close to a definition of the adjective "Arctic".
Anything north is Arctic, anything south is Antarctic.
Region
The geographic feature that most likely prevented the spread of Islam farther south at one point was the vast Sahara Desert in North Africa. Its harsh climate and challenging terrain made it difficult for early Muslim armies to easily conquer and convert peoples living in the region.
Location
The geographic feature primarily responsible for the lowest population on the map is likely a desert or mountainous region. These areas typically have harsh climates and difficult living conditions, which limit agricultural opportunities and access to resources. Consequently, they tend to support fewer inhabitants compared to more hospitable regions.
Yes, because the Artic is a place and places are capitalised.
The last name Uriostegui is of Basque origin, with roots in the Basque region of Spain. It is a surname that is likely derived from a specific place name or geographic feature in the Basque Country.
I'm not sure are you talking about Lapland or Fennoscandia.
The North Pole is in the Arctic Region.
The desert which covers both Egypt's Sinai peninsula and Israel's southern Negev region.