Orinoco, Amazon and La Plata drain into which ocean?

1. Atlantic
2. North Pacific
3. South Atlantic
4. South Pacific

The largest river system of the world is ………….

1. Amazon
2. Orinoco
3. Paraguay
4. Parana

Rio de la Plata is an example of

1. gulf
2. bay
3. estuary
4. port

Which desert lies to the south of Pampas?

1. La Tatacoa
2. Patagonia
3. Atacama
4. La Guajira