The correct answer is: c) Biodiverse ecosystems.
Sikkim is a state in northeastern India. It is located in the Eastern Himalayas, which is a mountain range that runs through Asia. The Himalayas are home to a wide variety of plants and animals, making them one of the most biodiverse regions in the world. Sikkim is no exception, and it is home to a number of different ecosystems, including forests, grasslands, and wetlands. These ecosystems support a wide variety of plants and animals, including tigers, leopards, elephants, and snow leopards.
Option a) is incorrect because Sikkim is not located in a desert. The Eastern Himalayas are a mountain range, and they are not home to any deserts.
Option b) is incorrect because Sikkim is not located in a tropical rainforest. The Eastern Himalayas are a mountain range, and they are not home to any tropical rainforests.
Option d) is incorrect because Sikkim does not have vast mineral deposits. The Eastern Himalayas are a mountain range, and they are not home to any vast mineral deposits.