Question

18. Which one among the following is a useful microorganism?
(i) Salmonella typhi
(ii) Rhizobium
(iii) Lactobacillus
(iv) Rhinovirus
(A) (i) and (ii) (B) (ii) and (iii) (C) (iii) and (iv) (D) (i) and (iv)
(E) None of these​

Answer 1

Answer:

Option B is correct.

lactobacillus and rhizobium

lactobacillus help in converting milk into curd.

rhizobium in root nodules helps to absorb atmospheric nitrogen

PLEASE MAKE IT A BRAINILIST ANSWER.......

Answer 2

Answer:

option B is correct

Explanation:

Lactobacillus also known as milk bacteria which helps in conversion of luke warm milk into curd

not only in formation of curd but also helps in curing the helicobacter pylori.a bacteria which produces ulcers in mouth.

Rhizobium is the bacteria present in the root nodules of leguminous plants. it maintains a symbiotic life with legumes.

this bacteria converts atmospheric nitrogen into ammonia that can be used by the plant in growth and development

make it as a BRAINILIST answer