Which of the following countries has regions where there are roughly six months of continuous day followed by about six months of continuous night, due to the polar location?

Introduction / Context:
This question relates to physical geography and the phenomenon of polar day and polar night. Near the poles, the tilt of the Earth causes the sun to remain above the horizon for very long periods in summer and below the horizon for long periods in winter. Some exam questions simplify this as six months of day and six months of night in polar regions and then ask which country experiences this effect.

Given Data / Assumptions:

• We are given four locations: Nepal, Tibet, Norway and Iceland.
• The question refers to a country known in school geography as the land of the midnight sun.
• The statement six months day and six months night is an idealised description of conditions at or very close to the poles.
• We assume the exam expects the standard textbook association rather than an exact astronomical calculation.

Concept / Approach:
The key is to know which of the listed countries extends into the Arctic Circle, where polar day and polar night occur. Norway has territories such as Svalbard and parts of northern mainland Norway that lie above the Arctic Circle. School textbooks often refer to Norway, and sometimes Sweden and Finland, when teaching about the land of the midnight sun and prolonged daylight in summer. The Himalaya region countries, such as Nepal and Tibet, are far from the poles, and Iceland, although high latitude, is still not exactly at the pole and has shorter continuous day and night periods than the simplified six months each in most exam explanations.

Step-by-Step Solution:
Step 1: Recall that the Earth is tilted at about 23.5 degrees, which causes polar regions to receive sunlight for long continuous stretches in their respective summers. Step 2: Identify which options are near the Arctic Circle. Norway extends into the Arctic region and is classically described as a land of the midnight sun. Step 3: Nepal and Tibet lie in the middle latitudes near the Himalayas, nowhere near the Arctic or Antarctic regions. Step 4: Iceland is also a northern country, but school level questions traditionally highlight Norway rather than Iceland for the six month type description. Step 5: Based on standard exam keys, Norway is the expected correct answer.

Verification / Alternative check:
Maps of the world that show the Arctic Circle clearly include northern Norway inside this circle, with cities like Tromso and regions like Svalbard experiencing polar night and polar day. Nepal and Tibet are in southern Asia, far from the poles. Iceland is high latitude but still south of the exact pole, and most school curricula highlight Norway more prominently. Therefore, matching both geography and typical exam convention, Norway is the best choice.

Why Other Options Are Wrong:
Option Nepal is wrong because it is a landlocked country in the Himalayas at mid latitudes, so it has normal day night patterns. Option Tibet is wrong since it is a high plateau region in China, again far from the polar zones that receive six month extremes. Option Iceland is a northern island but the simplified six month figure is not usually attached to it in exam keys; the classical example for such questions is Norway.

Common Pitfalls:
Many learners are tempted by Iceland, because they know it is near the Arctic Circle, and some parts do have long days and nights. However, the phrase six months day and six months night is often used loosely in textbooks and then directly linked to Norway in standard examples. Recognising which country is traditionally associated with the land of the midnight sun in exam material helps avoid confusion between similar high latitude countries.

Final Answer:
The country that is classically associated with regions having about six months of day and six months of night is Norway.