It is the world's longest mountain range_________.
A. The Mt. Everest
B. The Ural Mountains
C. The Karakoram range
D. The Andes

Answer

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Hint: Mountain ranges are formed by a diversity of geological cycles, but most of the important ones on Earth are the outcome of plate tectonics. Mountain ranges are also found on many planetary mass objects in the Solar System and are a characteristic of most of the terrestrial planets.

Complete Answer:
Looking at the above options:
Option A: Mount Everest is the highest mountain range in terms of elevation. It lies in the border of China and Nepal. This option is incorrect.
Option B: The Ural Mountains belong to Russia. Its mountain ranges extend to a length of 2500 km and it contains many economically valuable resources. They are well known for their rich deposits of natural gas. This option is incorrect.
Option C: The Karakoram ranges is the second highest mountain range in Asia. It is distributed in regions of India, Pakistan and China. This option is incorrect.
Option D: Andes mountain ranges are the longest mountain ranges in the world having an approximate length of 7000km. They stretch from north to south through seven countries, along the west coast of the continent South America. It is also known for its volcanoes. This option is correct.
Hence, the correct answer is, ‘D. The Andes’.

Note: The Alps, the Atlas, the Andes and the Rockies are the four major mountain ranges of the world. The Barberton Greenstone Belt is the oldest mountain range of the world which is located in South Africa. The mid-ocean ridge is the The longest mountain range on Earth is the mid-ocean ridge which covers 40,389 miles around the globe.