An organism used as a biofertilizer for raising soyabean crop is
1. Azospirillum
2. Rhizobium
3. Nostoc
4. Azotobacter

Important biofertilizers in paddy fields are:
1. Cyanobacteria
2. Rhizobia
3. Frankia
4. Nitrobacter and Nitrosomanas

Which one of the following helps in the absorption of phosphorus from soil by plants?   
1. Anabaena
2. Glomus
3. Rhizobium
4. Frankia 

An example of endomycorrhiza is:

1. Glomus

2. Agaricus

3. Rhizobium

4. Nostoc

Among the following pairs of microbes, which pair has both the microbes that can be used as biofertilizers?

1. Aspergillus and Rhizopus

2. Rhizobium and Rhizopus

3. Cyanobacteria and Rhizobium

4. Aspergillus and Cyanobacteria