Which geographic feature would most likely be found in the arctic region?

The likely word is arctic (near the North Pole, or similarly very cold), capitalized Arctic to mean the geographic region.

It is a physical feature that affects a certain region such as mountains, rivers, lakes, forests, or jungles...

That's pretty close to a definition of the adjective "Arctic".

Ohio is in the "Great Plains" geographic region.

The desert which covers both Egypt's Sinai peninsula and Israel's southern Negev region.

Polar bears live in the entire circumpolar Arctic region. They have adapted to be able to live in the water and on land.

The region north of the Arctic Circle is known as the Arctic.

I would say that mountains negatively affect the development of a region or a nation because they isolate countries or cut off areas. And as for a positive geographic feature affect of a region or a nation; lakes. They produce fertile soil, irrigation systems, healthy environment to start a civilization or develop a region.

how many oil wells are there by geographic region

The Arctic region is the northernmost region of the world that encompasses the North Pole.

The North Pole is in the Arctic Region.

The Arctic is present in the northern region. In the south is the Antarctic region.

Polar bears are found in the Arctic region. Polar bears live in the Arctic region

The North Pole is surrounded by the Arctic region.

You are in the arctic region. The pole in Antarctica is called the south pole.