Encircle the letter of the correct answer

11. These are encircling materials used on land to increase its productivity.

A. Pesticides
B. Fertilizers
C. Nutrients
D. Chemicals

12. It is a natural fertilizer from decayed matter, animals and other natural sources.

A. Organis fertilizer
B. Inorganic fertilizer
C. Pesticides
D. Nutrients

13. It is an artificial fertilizer made from chemicals (liquid, somble, and granular form)

A. Pesticides
B. Chemicals
C. Inorganic fertilizer
D. Organic fertilizer

14. It is an organic fertilizer that comes from decayed matters from plants and animals mixed with soil

A. Manure
B. Humus
C. Compost
D. Liquid fertilizer

15. It is an organic fertilizer that comes from animal waste such as livestock (big animal) and poultry (chicken) waste.

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