Primary purpose of pond fertilization is _____?

تالاب کی کھاد ڈالنے کا بنیادی مقصد _____ ہے؟

To increase water level

To increase primary productivity

To enhance fish health

None of these

Pond fertilization boosts the growth of plankton, the primary food source for fish.

This enhances the pond's natural productivity.

It supporting fish growth and yield.