Solution:

A ‘biofertilizer’ is a chemical that contains living microorganisms that encourage development by boosting the supply or availability of primary nutrients when applied to seed, plant surfaces, or soil. Fertilizers are not the same as biofertilizers. Fertilizers supply nutrients directly to the soil, whereas Biofertilizers contribute nutrients through natural processes such as atmospheric nitrogen fixation, phosphorus solubilization, and plant growth stimulation through the creation of growth-promoting chemicals. Azospirillum, Rhizobium, and other fungi are examples.