Mountains arranged in a line are called a range. A mountain range is a series or chain of mountains that are connected or aligned together. Mountain ranges can stretch for hundreds or even thousands of kilometers, and they can be found on every continent on Earth. They are formed by tectonic plate movements and other geological processes.

Formation of Mountain Ranges
- Mountain ranges are formed through two main processes: folding and faulting.
- Folding occurs when rock layers are compressed and deformed, resulting in the formation of folds or bends in the Earth's crust. These folds can create mountain ranges with long, parallel ridges.
- Faulting occurs when the Earth's crust breaks along a fault line, causing blocks of rock to move up or down. This movement can create steep, jagged mountain ranges with high peaks and deep valleys.

Types of Mountain Ranges
- There are different types of mountain ranges based on their formation and characteristics:
1. Fold Mountains: These are formed by the folding of rock layers. Examples include the Himalayas, the Alps, and the Andes.
2. Fault-Block Mountains: These are formed by the movement of large blocks of rock along faults. Examples include the Sierra Nevada in the United States and the Harz Mountains in Germany.
3. Volcanic Mountains: These are formed by volcanic activity and the accumulation of volcanic materials. Examples include the Cascade Range in the United States and the Japanese Alps in Japan.

Importance of Mountain Ranges
- Mountain ranges have significant ecological, economic, and cultural importance:
1. Ecologically, mountain ranges are home to unique and diverse ecosystems, including rare plant and animal species. They also play a crucial role in regulating global climate patterns and providing freshwater resources.
2. Economically, mountain ranges are often rich in natural resources such as minerals, timber, and water. They can also attract tourism, providing opportunities for recreational activities like hiking, skiing, and mountaineering.
3. Culturally, mountain ranges have been revered and celebrated by various cultures throughout history. They have inspired myths, legends, and spiritual beliefs, and they continue to hold cultural significance for many communities.

Conclusion
Mountain ranges, with their majestic beauty and geological significance, are a fascinating feature of our planet. They provide habitat for diverse ecosystems, offer valuable resources, and hold cultural significance for people around the world. Understanding their formation and characteristics helps us appreciate the intricate processes that shape our Earth.