Explanation: The Himalayas are the world's highest mountain range, stretching across the northern part of the Indian subcontinent. They are a significant geographical feature that influences the climate, ecology, and culture of the region. The Himalayas start in the west in Kashmir and extend to the east, ending in Arunachal Pradesh. This range is not only the highest but also one of the youngest mountain ranges in the world, formed by the collision of the Indian and Eurasian tectonic plates.
The Himalayas are divided into several ranges, including the Great Himalayas, the Lesser Himalayas, and the Outer Himalayas. Each of these ranges has its own unique characteristics and ecological zones. The Great Himalayas, which include the highest peaks like Mount Everest, are located in the north, while the Lesser and Outer Himalayas are situated to the south.
Arunachal Pradesh, located in the northeastern part of India, is the easternmost state in the Himalayan range. It is characterized by its rugged terrain, dense forests, and rich biodiversity. The state is home to several important rivers that originate in the Himalayas, such as the Brahmaputra, which plays a crucial role in the region's hydrology and agriculture.
Understanding the geographical extent of the Himalayas is important for several reasons. It helps in comprehending the ecological and environmental significance of the region, which is home to a diverse range of flora and fauna. Additionally, the Himalayas play a critical role in the climate of the Indian subcontinent, influencing weather patterns and providing water resources through its numerous rivers.
In conclusion, the Himalayas stretch from Kashmir in the west to Arunachal Pradesh in the east, making Arunachal Pradesh the correct answer. This geographical knowledge is essential for students of geography, environmental science, and those preparing for competitive examinations that cover Indian geography.