The first place.step before growing crops is ___________ of the soil

Damaged seeds would ________ on top of water


For growing a crop, the sufficient sunlight and ________ and __________ from the soil are essential

What is drip system ?

What is sprinkler system ?

What is microorganisms ?

who discoverd fermentation ?

Who discovered penicillin ?

Who discovered vaccine ?

Who discovered anthrax ?

Female Anopheles mosquito carriers __________

Female Aedes mosquito carrier __________

Yeast produce _________

Cholera is caused by ________

Microorganisms can be seen with the help of

Name any two disease caused by virus

Which bacteria promotes the formation of curd ?

Name the nitrogen fixation bacteria

Name the five group of microorganisms

Name any two food preservation​

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