Explanation:

All of the above mentioned codes are correct.

• The Western Ghats is one of the eight hotspots of biological diversity in the world and is spread across six states—Gujarat, Maharashtra, Goa, Karnataka, Tamil Nadu and Kerala.
• The forests in the Western Ghats are the water towers of peninsular India.

Importance of western ghats

• The Western Ghats is an extensive region spanning over six States. It is the home of many endangered plants and animals. It is a UNESCO World Heritage site.
• It is one of the eight “hottest hot-spots” of biological diversity in the world.
• According to UNESCO, the Western Ghats are older than the Himalayas. They influence Indian monsoon weather patterns by intercepting the rain-laden monsoon winds that sweep in from the south-west during late summer.

Hence option 4th is correct.