Explanation:

Chile is officially known as the Republic of Chile. Its capital is Santiago.

• It is a South American country occupying a narrow strip of land between the Andes to the east and the Pacific Ocean to the west.
• It borders Peru to the north, Bolivia to the northeast, Argentina to the east, and the Drake Passage in the south.
• The Atacama desert is one of the driest places in the world and touches Chile in its northern side and is a source of sodium nitrate fertilizer.
• It owes its aridity due to a constant temperature inversion of cool north-flowing Humboldt ocean current.
• Chuquicamata is the World’s largest copper town of Chile.

Hence option 4th is correct.