biofertilizer - Category wise Question and Answer Practice Test with Solutions

Question : 1 [UPPCS (Mains) 2012]

Which of the following microorganisms are used as biofertilizer?

a) Virus

b) Cyanobacteria

c) Protozoa

d) None of the above

Question : 2 [UPPCS (Pre) 1999]

2, 4-D is

a) A fungicide

b) An insecticide

c) An explosive

d) A herbicide

Question : 3 [UPPCS (Pre) 2017]

Which one of the following is not correctly matched? Nitrogen fixing Crop agent

a) Azotobacter - Wheat

b) Blue-green algae - Paddy

c) Rhizobium - Pea Leguminisarum

d) Azolla – Maize

Question : 4 [UPPCS (Pre) 2006]

Which bacteria is responsible for nitrogen fixation in soyabean?

a) Rhizobium fajioleai

b) Rhizobium leguminosarum

c) Rhizobium japonicum

d) Rhizobium traitolai

Question : 5 [UPPCS (Mains) 2011]

Azolla is often used as biofertilizer because it is associated with

a) Fungus

b) Blue-green algae

c) Red algae

d) Moss