Question

8)
are useful bacteria
Coccus
Bacillus
Loo
Lactobaci
Vibrio​

Answer 1

Lacto bacillus bacteria is a useful bacteria Which helps to convert milk to curd

Answer 2

The useful bacterias are Lactobacillus which converts Milk to curd

And some useful bacterias also there

Rhizopus which helps in nitrogen fixetion Like leguminous plants

Bacillus thurangeous This also one type of useful Bactria Which Helps to kill Insects or pesta on trees

PenciliumFungus This is also One type of useful bacteria which helps to discover penicillin vaccine

So these all are useful Microrganisms w