Aquatic fern which is an excellent biofertilizer

The acquatic fern which is an excellent biofertilizer is

Aquatic fern ____ is an excellent biofertilizer.

Which of the following is an aquatic fern and an excellent bio- Fertilizer ?

Which of the following is an aquatic fern and an excellent bio- Fertilizer ?

Aquatic fern 'Marsilea' is an excellent bio-fertilizer.(True or False)

Name the water fern that is an excellent biofertiliser for rice cultivation.

Name the water fern that is an excellent biofertiliser for rice cultivation. What helps the fern to do so?

Role of Microbes as Biofertilizers : Describe the aquatic fern which can be used as biofertilizers .

Name the water ferm that is an excellent biofertilliser for rice cultigvation. What helps the fern to do so?

Which one is not a biofertilizer ?