What is biological nitrogen fixation?

What is nonbiological nitrogen fixation ?

What is meant by biological nitrogen fixation ? List atleast two organisms involved in biological nitrogen fixation.

How is industrial nitrogen fixation different from biological nitrogen fixation ? Explain.

In paddy fields, biological nitrogen fixation is chiefly brought by :

In paddy fields, biological nitrogen fixation is chiefly brought about by

In paddy fields, biological nitrogen fixation is chiefly brought about by

In paddy fields, biological nitrogen fixation is chiefly brought about by

What do you mean by biological nitrogen fixation?

Write the equation of the reaction in biological nitrogen fixation.

Which one is the correct sequene of molecules during biological nitrogen fixation?