Geography

The Colorado River is a major river located in the United States, primarily flowing through the southwestern region including states like Colorado, Utah, Arizona, Nevada, and California.

Hub Dam is located on the Hub River, which flows near Karachi in Pakistan. Therefore, the correct answer is Hub River.

The Colorado River is a major river located in the southwestern United States, primarily flowing through states such as Colorado, Utah, Arizona, Nevada, and California. Therefore, the correct answer is USA.

Hub Dam is located on the Hub River, which flows near Karachi in Pakistan. Therefore, the correct answer is Hub River.

Sakaser is the highest peak in the Salt Range, reaching an elevation of about 1,522 meters. K-2 and Nanga Parbat are much higher peaks but located in the Karakoram and Himalayas, respectively, not in the Salt Range.

Derawar Fort is located in the Cholistan Desert of Pakistan. It is a prominent historical fort situated in this desert region, making option A the correct answer.

The Gobi Desert is located in northern China and southern Mongolia, making option D the correct answer. The other options list regions where the Gobi Desert is not found.

K2 is the second highest mountain in the world and is located in the Karakoram mountain range, which spans the borders of Pakistan, India, and China. It is not part of the Himalayas or the Pamir ranges.

Pakistan's sea ports primarily serve as transit routes for the movement of goods and trade, facilitating import and export activities. They are not primarily used for tourism alone or air defense, making option A the correct choice.

The Burj Khalifa, currently the tallest building in the world, is located in Dubai, United Arab Emirates. This makes option A the correct answer.