11. What two countries does the Orinoco river drain
12. Where are the Andes Mountains located?
13. What agricultural technique involves using ashes to fertilize the soil?
16. Which river drains the largest rain forest in the region?
19. What farming technique is especially useful in mountainous
regions?

Respuesta :

Answer:

hope this helps lol

Explanation:

11. Colombia & Venezuela

12. Along the entire western (pacific-facing) coast of South America.

13. Slash-and-burn technique

16. The Amazon

19. Terraced Farming. (The ancient technique for growing crops on hillsides or mountain slopes.)