'थोड़ा नपा-तुला भोजन

Iron is an important component of which of the following enzyme?

Which allelopathy type involves the release into the environment of compound that is toxic after chemical modification by micro-organisms? 

Milk is deficit in which of the following element? 

In which part of insect body, Johnston's organs are present?

Term mutation breeding was given by

Which of the following is not the steps of teaching process?

Which of the following crop is a source methane and nitrous oxide emission into the atmosphere?

Select correct formula of urea

Fanging is related to