The correct answer is: a) The Western Ghats.
The Western Ghats are a mountain range in India that runs parallel to the west coast of the country. They are a biodiversity hotspot and are home to a wide variety of plants and animals. The Western Ghats are also a major source of water for the Indian subcontinent.
Black pepper, cardamom, and cloves are all major spice crops that are grown in the Western Ghats. These spices are used in a variety of cuisines around the world and are an important part of the Indian economy.
The Eastern Ghats are a mountain range in India that runs parallel to the east coast of the country. They are not as well-known as the Western Ghats, but they are also a biodiversity hotspot and are home to a wide variety of plants and animals. The Eastern Ghats are not as important for agriculture as the Western Ghats, but they do support some cultivation of crops such as rice and tea.
Coastal plains are areas of land that are located near the coast. They are typically flat or gently sloping and are often covered in sand or mud. Coastal plains are important for agriculture, as they are well-suited for growing crops such as rice, wheat, and corn. They are also important for tourism, as they offer beautiful beaches and other natural attractions.
River valleys are areas of land that are located along the course of a river. They are typically narrow and V-shaped, and are often used for agriculture, as they are well-suited for growing crops such as rice, wheat, and corn. River valleys are also important for transportation, as they provide a natural route for rivers to flow.