13. Which of the following is NOT a characteristic of cereal crops?
A. They are monocots
B. They are rich in carbohydrates, proteins, fats, and fibers
C. They are dicots
D. They are adapted to specific agro-ecologies

14. Which cereal crop is more adapted to lowland and moisture-deficit areas?
A. Wheat
B. Barley
C. Teff
D. Sorghum

15. What is the main use of maize residues in rural areas?
A. Making paper
B. Firewood
C. Construction material
D. Producing biofuel

16. What is the recommended fertilizer application for maize per hectare?
A. 30 kg nitrogen and 15 kg phosphorus
B. 41 kg nitrogen and 20 kg phosphorus
C. 50 kg nitrogen and 25 kg phosphorus
D. 60 kg nitrogen and 30 kg phosphorus

17. What is the recommended spacing for row planting of haricot bean?
A. 10 cm between seeds and 40 cm between rows
B. 5 - 10 cm between seeds and 30 cm between rows
C. 25 cm between seeds and 75 cm between rows
D. 30 cm between seeds and 80 cm between rows

18. What primarily determines crop production?
A. The type of crop and the environment in which it is grown
B. The amount of rainfall in a region
C. The number of farmers in an area
D. The type of machinery used

IV. Write short answers for the following questions in the spaces provided (1 point each)

19. Write the two main classifications of field crops.

20. Teff is sometimes referred to as a "superfood." Why do you think it might be considered a "superfood"? Write at least three reasons.