Geography

Pakistan shares its western border with both Iran and Afghanistan. Geographically, Iran lies to the southwest of Pakistan, while Afghanistan lies to the northwest and directly west as well. Therefore, the question asking for the country Pakistan shares a western border with is incomplete if it only mentions Iran. Both Iran and Afghanistan share western borders with Pakistan. Among the given options, Afghanistan (D) is a correct answer for the western border, and Iran (A) is also correct but not the only one. Since the question asks for one country, Afghanistan is a more precise answer for the western border, especially considering the length and geopolitical significance of the Pakistan-Afghanistan border (the Durand Line).

China is located directly to the north of Pakistan, sharing a border in the region of Gilgit-Baltistan.

The regions around the North and South Poles, located within the Arctic and Antarctic Circles, are known as the Frigid Zones due to their extremely cold climates.

Gwadar Port is located in the province of Balochistan, Pakistan, on the southwestern coast along the Arabian Sea.

The Mississippi River is the largest and most significant river system in North America, both in terms of length and economic importance.

An equinox occurs when the duration of day and night are approximately equal all over the Earth. This happens twice a year, around March 21 and September 23.

The Arabian Sea is located to the south of Pakistan, forming the country's southern coastline.

The McMahon Line is the boundary line between India and China, specifically demarcating the border between India's Arunachal Pradesh and China's Tibet Autonomous Region.

The Takla Makan Desert is located in the Xinjiang Uyghur Autonomous Region of China. It is one of the largest sandy deserts in the world and is entirely within China.

Tarbela Dam is located in the Haripur District of Khyber Pakhtunkhwa, Pakistan. Although it is near Swabi, the dam itself is within the administrative boundaries of Haripur.