Question

9. Chemical fertilisers contain
humus.
organic matter.
inorganic salts.
plant and animal matter.
0​

Answer 1

Inorganic salts

Hope it helps you.. ✌️ ☺ ☺

Answer 2

Answer:

Explanation: Humus. Humus, nonliving, finely divided organic matter in the soil, derived from microbial decomposition of plant and animal substances. Humus, which ranges in color from brown to black, consists of about 60 percent carbon, 6 percent nitrogen, and smaller amounts of phosphorus and sulfur.