Question

1. Suggest a suitable word for each of the following statement
(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

Answer:

(a) preservatives

(b) rhizobium

(c) carrier

(d) infecticides or pesticides

Answer 2

Answer:

a) preservative

b)rhizobia

c)vector

D)phenol or bleach