Question

Question 9
Suggest a suitable word for each of the following statements.

(a) Chemicals added to food to prevent growth of microorganisms.
(b) Nitrogen-fixing microorganism present in the root nodules of legumes.
(c) Agent which spreads pathogens from one place to another.
(d) Chemicals which kill or stop the growth of pathogens.

Answer 1

(a) Preservatives
(b) Rhizobium
(c) Carrier/vector
(d) Antibiotics