Set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Which of the following is a source of biofertilizer?

a) Azolla

b) Yeast

c) Chlorella

d) Mold

Question : 2

Azolla gives a good biofertilizer when mixed with

a) Cow dung

b) Blue-green algae

c) Bone meal

d) Urea

Question : 3

Which of these is not correctly matched?

a) Bio 902 - Variety of mustard

b) Blue-green algae - Biofertilizer

c) Chrysopa - Maho-control

d) Azotobacter – Bioinsecticide

Question : 4

Aquatic Fern, which is used as a biofertilizer is

a) Marsilia

b) Salvinia

c) Azolla

d) Pteridium

Question : 5

Blue-green algae are chiefly used as biofertilizer in the crop of

a) Paddy

b) Wheat

c) Gram

d) Mustard

Question : 6

Azolla is

a) Aquatic bacteria

b) Aquatic Fern

c) Aquatic algae

d) None of the above