Geography of Pakistan

Faisalabad is the third most populated city in Pakistan, after Karachi and Lahore. Therefore, the correct answer is '3rd'.

The Thar Desert is the largest desert in Pakistan, covering a significant area in the southeastern part of the country. Thal and Cholistan are smaller deserts compared to Thar.

Nandipur Power Plant is located near Sahiwal in Punjab, Pakistan. Therefore, option B is the correct answer.

The Kharan Desert is located in the Balochistan province of Pakistan, making option B the correct answer.

Shandur Pass, known as the highest polo ground in the world at 3,734 meters, is located in the Chitral District of Pakistan. This makes option C the correct answer.

Natural gas was discovered in Sui, Balochistan, Pakistan, in 1954, marking a significant development in Pakistan's energy sector.

Chaghi District is the largest district in Pakistan by area, located in Balochistan province. It covers a vast area compared to other districts listed.

Tarbela Dam is the world's largest earth-filled (mud) dam, located in Pakistan. It is known for its massive size and construction using earth and rock materials.

The Sukkur Barrage is the largest barrage in Pakistan, located on the Indus River. It plays a crucial role in irrigation and flood control, making it the largest among the options listed.

Gilgit is commonly referred to as the 'Switzerland of Pakistan' due to its stunning mountainous landscapes and scenic beauty, similar to Switzerland. While Swat is also beautiful, the nickname is specifically associated with Gilgit.

The Khyber Pass is a mountain pass located in the Hindu Kush mountain range, connecting Pakistan and Afghanistan. It is historically significant as a trade route and strategic military location.

Bhambhore is an ancient city located near Thatta in the Sindh province of Pakistan, making option A correct.

Zardak Peak is the highest peak of the Kirthar Range, not the Sulaiman Range. It stands at approximately 2,260 meters (7,430 feet) and is located in the Kirthar Mountains, which lie between Sindh and Balochistan provinces of Pakistan. The highest peak of the Sulaiman Range is Zarghun Ghar, near Quetta, with an elevation of about 3,578 meters (11,734 feet). Therefore, the correct answer is option C, Kirthar range.

Lake Manchar is located in the Dadu district of Sindh, Pakistan. Therefore, option B is correct.

The Soan and Haro rivers flow through the Potohar Plateau region of Pakistan, making option D the correct answer. These rivers are significant water bodies in that area.

Emeralds, the precious green gemstones, are primarily found in the Gilgit region of Pakistan, which is famous for its gemstone deposits. Swat is known for other minerals but not notably for emeralds.

The Siachen Glacier is located in the eastern Karakoram range in the Himalayas. It is the highest battleground on Earth and lies in the Karakoram mountain range, making option D correct.

The area of the Federally Administered Tribal Areas (FATA) was approximately 18,925 square kilometers before its merger with Khyber Pakhtunkhwa in 2018. Option A correctly reflects this figure.

Swat Valley is located in the Hindu Kush mountain range in northern Pakistan, making option A correct. The Karakorum and Himalayas are different mountain ranges located further east.

Murree is known as one of the rainiest places in Pakistan due to its hilly terrain and monsoon climate, receiving more rainfall compared to Quetta, Karachi, and Ziarat.

Kalabagh iron deposits are known to be the largest in Pakistan with an estimated reserve of approximately 509 million tons, making option B correct. This figure is widely cited in geological surveys of Pakistan's mineral resources.

Sibbi is known as one of the hottest places in Pakistan and has recorded temperatures as high as 126°F, which is higher than the temperatures recorded in Jacobabad and other listed cities. Therefore, Sibbi is the correct answer.

The nickname "Valley of Flowers" is not commonly associated with Quetta. Quetta is known as the "Fruit Garden of Pakistan" due to its fruit orchards. The city commonly referred to as the "Valley of Flowers" in Pakistan is Peshawar, which is also nicknamed the "City of Flowers". The other cities listed (Lahore and Karachi) do not have this nickname. Therefore, the correct answer is A: Peshawar.

Khyber Pakhtunkhwa (KPK) province does not have any desert areas, unlike Sindh, Punjab, and Balochistan, which all contain desert regions such as the Thar Desert and the Kharan Desert.

Khojak Pass is a mountain pass located in the Toba Achakzai range of Balochistan, Pakistan. It connects Qila Abdullah with Chaman, serving as a key route between these towns near the Pakistan-Afghanistan border. This is confirmed by multiple reliable sources including Wikipedia and geographical references. The other options, including connecting Chitral with Nooristan, are incorrect for Khojak Pass.